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#87cdf8

a light, electric blue · cool · “Light Sky Blue”

RGB
135, 205, 248
HSL
203°, 89%, 75%
CMYK
46, 17, 0, 3
Luminance
0.5559

At a glance

Every number on this page in one read: what #87cdf8 is made of, how bright it looks, and which way it leans.

Hex
#87cdf8
Hue
203°
blue
Saturation
89%
electric
Lightness
75%
light
Brightness
97%
HSV value
Perceived
76%
weighted brightness
Luminance
0.5559
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
12.12:1
Closest name
Light Sky Blue
ΔE2000 0.3
Where it sits
Hue203° of 360°
Saturation89%
Lightness75%
Temperature
Warm ← → Cool97% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#87cdf8
RGBrgb(135, 205, 248)
HSLhsl(203, 89%, 75%)
CMYKcmyk(46%, 17%, 0%, 3%)
LABlab(79.4 -10.8 -28.0)
LCHlch(79.4 30.0 248.8)
OKLCHoklch(0.818 0.093 236.5)
Decimal8900088
Display P3color(display-p3 0.529 0.804 0.973)

Copy-ready code

/* CSS */
color: #87cdf8;
background-color: #87cdf8;
/* Tailwind (arbitrary) */
class="text-[#87cdf8] bg-[#87cdf8]"
/* SCSS */
$brand: #87cdf8;
/* SwiftUI */
Color(red: 0.529, green: 0.804, blue: 0.973)
/* Android */
Color.parseColor("#87cdf8")
/* Flutter */
Color(0xFF87CDF8)
/* Python / OpenCV (BGR) */
(248, 205, 135)

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #87cdf8 · 12.12:1
Use #000000AAA at every size.
Aa
White text · 1.73:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.12:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #87cdf8 as text scores 1.73:1 on white and 12.12:1 on black.

Accessibility — WCAG contrast

Aa
#87cdf8 on white: 1.73:1
AA ✗ fail · AA-large · AAA
Aa
#87cdf8 on black: 12.12:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #B9CCFA
deuteranopia · #AABFF7
tritanopia · #54D8DB

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #87cdf8 is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F9FD
#E5F2FB
#C4E4F8
#87cdf8
#60BDF6
#2BA7F3
#0D95E7
#0B7CC1
#09639A
#0B496F
#072E46
Base = 300Lightest = 50 · #F2F9FDDarkest = 950 · #072E46
:root {
  --brand-50: #F2F9FD;
  --brand-100: #E5F2FB;
  --brand-200: #C4E4F8;
  --brand-300: #87cdf8;
  --brand-400: #60BDF6;
  --brand-500: #2BA7F3;
  --brand-600: #0D95E7;
  --brand-700: #0B7CC1;
  --brand-800: #09639A;
  --brand-900: #0B496F;
  --brand-950: #072E46;
  --brand: #87cdf8;
  --brand-ink: #000000;
}

Colors that work with #87cdf8

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F8FA
Tinted page background
Border#C0DCED
Hairlines and dividers
Muted text#4B7C9B
Captions on the surface
Accent#C62006
Second voice, not a rival
Dark variant#074D78
Hover, pressed, headers
Light variant#E7F5FE
Selected rows, tints
Dark surface#141E24
Dark-mode background
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

How to use #87cdf8

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#F8B287
Analogous left#87F8EA
Analogous right#8795F8
Split-complement 1#F88795
Split-complement 2#F8EA87
Triadic 1#F887CD
Triadic 2#CDF887
Tetradic#EA87F8

RGB percentages

Red52.9%
Green80.4%
Blue97.3%

CMYK percentages

Cyan45.6%
Magenta17.3%
Yellow0.0%
Key (black)2.7%

Color previews

#87cdf8 text on a black background

contrast 12.12:1

Card sample

#87cdf8 text on a white background

contrast 1.73:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #87cdf8;
Background color
Panel with #87cdf8 background
background-color: #87cdf8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #87cdf8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(135, 205, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(135, 205, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #87cdf8;
background: linear-gradient(135deg, #87cdf8, #8C87F8);

Monochromatic scale

Palettes built from #87cdf8

Shades — darker

Tints — lighter

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#87cdf8 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#87cdf8, answered

What color is #87cdf8?

#87cdf8 is a light electric blue — the CSS keyword Light Sky Blue. It sits at 203° on the hue wheel with 89% saturation and 75% lightness, which reads as cool.

What is the RGB value of #87cdf8?

rgb(135, 205, 248) — 135 red, 205 green and 248 blue out of 255, or 52.9% / 80.4% / 97.3% by channel.

Is #87cdf8 a light or a dark color?

It is a light color. Relative luminance is 0.5559 and perceived brightness is 76%, so black text on it reaches 12.12:1.

Should I use black or white text on #87cdf8?

Black. It scores 12.12:1 against #87cdf8, versus 1.73:1 for white — AAA at any size.

What is the complementary color of #87cdf8?

#F8B287 sits directly opposite on the wheel. Softer options are the split-complements #F88795 and #F8EA87, which give the same contrast with far less vibration.

What colors go well with #87cdf8?

For interface work: #F4F8FA as the surface, #C0DCED for borders, #4B7C9B for secondary text, #C62006 as an accent and #074D78 for hover and pressed states. For a palette, the analogous pair #87F8EA and #8795F8 stays calm, while #F8B287 is the loudest partner.

What is #87cdf8 in CMYK for printing?

cmyk(46%, 17%, 0%, 3%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #87cdf8 warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #87F7F8; nudged cooler, #6DB6F8.

Work with #87cdf8 in the Color Lab