Tints & Shades
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Scale from white (50) through Sky Blue (500) to black (900), interpolated in Lab color space.
Color Values
- HEX
- #87CEEB
- RGB
- rgb(135, 206, 235)
- HSL
- hsl(197, 71%, 73%)
- OKLCH
- oklch(0.815 0.082 226)
- CMYK
- cmyk(43%, 12%, 0%, 8%)
--color-sky-bluebg-[#87CEEB]Accessibility
Score: 48/100On White (#FFF)
1.74:1
On Black (#000)
12.06:1
On Light Gray (#F5F5F5)
1.6:1
Best text color on this background:
Design Applications
background-color: #87CEEB
color: #87CEEB
bg-[#87CEEB] text-[#000000]
border-left: 4px solid #87CEEB
Color Harmonies
Complementary
Mandarin
#F37A48
Split-Complementary
Similar Colors
Color Meaning & Psychology
Sky blue is the color of clear sky and open possibility. It is universally calming and is used extensively in healthcare environments, children's products, and digital products where anxiety reduction is a design goal. Its lightness makes it unsuitable for typography without a dark background.
Industry Usage
Common contexts and industries where Sky Blue is applied in professional design.
- Banking, insurance, and financial institutions
- Healthcare and medical device companies
- Enterprise software and SaaS platforms
- Government and public sector organizations
- Airlines and aviation brands
- Communication and social networking apps
- Cybersecurity and data protection products
- Pharmaceutical companies and clinical products
Accessibility Considerations
Normal Text
Fails AA
4.5:1 minimum required
Large Text
Fails AA Large
3:1 minimum required
UI Components
Check contrast
3:1 for non-text UI
Sky Blue is a light color. Use black (#000000) text on top of it for maximum readability (12.06:1). Avoid white text on this background.
CSS & Code Examples
Background
background-color: #87CEEB;Text
color: #87CEEB;Border
border: 2px solid #87CEEB;Box Shadow
box-shadow: 0 4px 20px #87CEEB40;Gradient
background: linear-gradient(135deg, #87CEEB, #baffff);Tailwind-style
--color-sky-blue: #87CEEB;Tailwind CSS Utilities
Use arbitrary value syntax in Tailwind CSS to apply Sky Blue without a custom config.
Background
bg-[#87CEEB]Text
text-[#87CEEB]Border
border-[#87CEEB]Ring
ring-[#87CEEB]Fill
fill-[#87CEEB]From (gradient)
from-[#87CEEB]Via (gradient)
via-[#87CEEB]To (gradient)
to-[#87CEEB]Design Tokens
Ready-to-use Sky Blue design token in CSS custom properties, SCSS, Tailwind v3/v4, and JSON formats.
CSS Custom Properties
:root {
--color-sky-blue: #87CEEB;
--color-sky-blue-rgb: 135, 206, 235;
--color-sky-blue-hsl: 197, 71%, 73%;
}SCSS Variables
$color-sky-blue: #87CEEB; $color-sky-blue-rgb: 135, 206, 235; $color-sky-blue-hsl: 197, 71%, 73%;
Tailwind v3 Config
// tailwind.config.js
module.exports = {
theme: {
extend: {
colors: {
'sky-blue': '#87CEEB',
},
},
},
};Tailwind v4 (@theme)
/* tailwind.css */
@theme {
--color-sky-blue: #87CEEB;
}JSON Design Token (W3C format)
{
"sky-blue": {
"value": "#87CEEB",
"type": "color",
"description": "Sky Blue — #87CEEB"
}
}Related Palettes & Combinations
Color Combinations
Accessible Color Pairs
More blue colors
View all →What Does Sky Blue Mean? Color Psychology & Cultural Symbolism
Sky Blue at #87CEEB is a light expression of the trust spectrum. Blue tones are processed by the brain's credibility centers before conscious evaluation—which is why virtually every major financial institution, technology company, and government body defaults to the blue family to establish authority.
- Blue is the most universally trusted color in Western design—associated with authority (government, police, corporate), intelligence (universities, technology), and emotional calm (water, sky). It's the dominant color in corporate branding precisely because it creates immediate credibility.
- In Chinese tradition, blue represents immortality and the heavens, associated with the element of wood and spring vitality. In many Islamic cultures, blue offers protection from evil (the "evil eye" tradition), and in Indian traditions it's associated with divinity (Krishna).
- Sky Blue's light lightness (73%) shifts its psychological register: Sky and powder blues feel open, airy, and emotionally approachable—softening corporate authority into friendliness; popular in consumer tech and digital wellness.
- At 71% saturation, Sky Blue reads as moderately saturated—neither overwhelming nor passive, landing in the trust, reliability, calm, and professionalism zone with measured confidence.
In a world of visual noise, Sky Blue earns attention through steadiness. Use it where you need to be believed.
How to Use Sky Blue in Design: Applications, Pairings & Best Practices
Sky Blue's accessibility profile makes it one of the more designer-friendly choices in the warm-cool spectrum. Its light quality at 73% lightness typically produces workable contrast ratios for both text and UI applications.
- UI components: primary brand color, link color, interactive states—Sky Blue performs reliably in all these roles with its light tonal character.
- Brand & identity: corporate identity, banking and finance UIs, healthcare platforms—contexts where Sky Blue's moderately saturated quality creates the right register.
- Typography: Sky Blue as text requires a dark background; its 73% lightness means it provides 1.7:1 contrast on white, not meeting WCAG AA.
- Sky Blue creates strong legibility with black text overlays (12.1:1 contrast ratio), making it a reliable background or surface color in design systems
- Proportional use: Sky Blue's moderately saturated saturation (71%) means small applications—accents, highlights, icons—deliver maximum impact without visual fatigue. Reserve large-scale use for intentional brand moments.
In a world of visual noise, Sky Blue earns attention through steadiness. Use it where you need to be believed.
Sky Blue Accessibility: WCAG Contrast Ratios, Color Blindness & Inclusive Design
Sky Blue (#87CEEB) achieves a 12.06:1 contrast ratio with black text, surpassing the WCAG 2.1 AAA threshold of 7:1. This exceptional contrast qualifies it for body text, UI components at any size, and all accessibility-sensitive interface contexts. Relative luminance: 55.3%.
- As text on white (#FFFFFF): 1.74:1 — Fail
- As text on black (#000000): 12.06:1 — AAA ✓
- Best text color on Sky Blue background: Black (#000000) at 12.06:1
- WCAG 2.1 luminance: 55.3% — above-median luminance—it reads as a light to mid-tone background, compatible with dark text while retaining color personality
- Sky Blue qualifies for all text sizes including small body copy (AAA).
- Color blindness consideration: tritanopia (blue-yellow color blindness, ~0.003% of population) may affect how this color reads. While rare, for maximum accessibility supplement color signals with text or icon indicators in critical states.
Sky Blue's WCAG profile makes it a compliant choice for most text applications.
Sky Blue in Industry: Branding, Design & Market Applications
Sky Blue (#87CEEB) is most at home in industries where trust, reliability, calm, and professionalism are key brand values. Its light quality makes it particularly effective in Finance & Banking contexts, where the moderately saturated saturation signals stability at exactly the right register.
- Finance & Banking: Blue is the most trusted color in financial services—a global design convention built over decades. It signals fiduciary reliability, stability, and the conservative stewardship that depositors and investors need to feel comfortable transferring wealth. (examples: JPMorgan Chase, Goldman Sachs, Visa) Dark navy communicates established tradition; mid-tone blues suggest accessible, modern banking. Avoid pure bright blue for legacy institutions.
- Technology: Technology brands use blue to communicate intelligence, reliability, and forward-thinking professionalism. From legacy enterprise software to consumer apps, blue provides a neutral credibility that scales across markets and cultures. (examples: Apple, Microsoft, Salesforce) Varying the tone of blue is how tech brands differentiate: sky blue for friendliness (consumer apps), royal blue for confidence (productivity tools), navy for enterprise seriousness.
- Healthcare: Healthcare's use of blue is a trust transfer from corporate credibility to clinical reliability. Patients associate blue with cleanliness, precision, and medical competence—making it the second most common healthcare color after white. (examples: Headspace, One Medical, Kaiser Permanente) Teal-blue works particularly well for health tech and telemedicine, balancing clinical trust with digital accessibility.
- Brand positioning: Sky Blue is best suited for brands projecting trustworthiness, reliability, professionalism. Categories outside this positioning—food contexts where it suppresses appetite (the only major color with no natural blue foods)—tend to see weaker results.
- Adjacent applications: Beyond primary industries, Sky Blue works effectively in corporate identity, banking and finance UIs, healthcare platforms—contexts where stability serves a secondary but reinforcing role.
The industries where Sky Blue performs best are those where the audience expects stability. Build brand strategy around this alignment, not against it.
Accessibility & Design Guides
Frequently Asked Questions
- What is the hex code for Sky Blue? ▾
- The hex code for Sky Blue is #87CEEB. Its RGB values are rgb(135, 206, 235) and its HSL values are hsl(197, 71%, 73%).
- What does Sky Blue mean in design? ▾
- Sky blue is the color of clear sky and open possibility. It is universally calming and is used extensively in healthcare environments, children's products, and digital products where anxiety reduction is a design goal. Its lightness makes it unsuitable for typography without a dark background.
- Is Sky Blue WCAG accessible? ▾
- Sky Blue (#87CEEB) does not pass WCAG AA on white (1.74:1 ratio). Use it on dark backgrounds where it achieves 12.06:1. Its overall accessibility score is 48/100.
- What colors go well with Sky Blue? ▾
- Sky Blue pairs well with its complementary color Mandarin (#F37A48). Analogous colors like Bright Teal and Electric Blue also work harmoniously. Check the Color Harmonies section above for the full palette.
- What is Sky Blue used for? ▾
- Sky Blue is commonly used for: Banking, insurance, and financial institutions; Healthcare and medical device companies; Enterprise software and SaaS platforms; Government and public sector organizations; Airlines and aviation brands.
- What are the CSS and Tailwind values for Sky Blue? ▾
- In CSS, use `color: #87CEEB` or `background-color: #87CEEB`. The CSS custom property is `--color-sky-blue: #87CEEB`. In Tailwind CSS, use the arbitrary value class `bg-[#87CEEB]` for backgrounds or `text-[#87CEEB]` for text.