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#87cfee

a light, electric cyan · cool · “Sky Blue”

RGB
135, 207, 238
HSL
198°, 75%, 73%
CMYK
43, 13, 0, 7
Luminance
0.5595

At a glance

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

Hex
#87cfee
Hue
198°
cyan
Saturation
75%
electric
Lightness
73%
light
Brightness
93%
HSV value
Perceived
75%
weighted brightness
Luminance
0.5595
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
12.19:1
Closest name
Sky Blue
ΔE2000 0.6
Where it sits
Hue198° of 360°
Saturation75%
Lightness73%
Temperature
Warm ← → Cool95% 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#87cfee
RGBrgb(135, 207, 238)
HSLhsl(198, 75%, 73%)
CMYKcmyk(43%, 13%, 0%, 7%)
LABlab(79.6 -14.6 -22.3)
LCHlch(79.6 26.6 236.9)
OKLCHoklch(0.818 0.084 227.1)
Decimal8900590
Display P3color(display-p3 0.529 0.812 0.933)

Copy-ready code

/* CSS */
color: #87cfee;
background-color: #87cfee;
/* Tailwind (arbitrary) */
class="text-[#87cfee] bg-[#87cfee]"
/* SCSS */
$brand: #87cfee;
/* SwiftUI */
Color(red: 0.529, green: 0.812, blue: 0.933)
/* Android */
Color.parseColor("#87cfee")
/* Flutter */
Color(0xFF87CFEE)
/* Python / OpenCV (BGR) */
(238, 207, 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 #87cfee · 12.19:1
Use #000000AAA at every size.
Aa
White text · 1.72:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.19:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #87cfee as text scores 1.72:1 on white and 12.19:1 on black.

Accessibility — WCAG contrast

Aa
#87cfee on white: 1.72:1
AA ✗ fail · AA-large · AAA
Aa
#87cfee on black: 12.19:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #BFCCF0
deuteranopia · #AFC0EE
tritanopia · #5BD8D9

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #87cfee 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.

#F3F9FC
#E7F3F9
#C8E7F4
#87cfee
#6CC4EA
#3AB0E3
#1E9FD6
#1984B3
#146A8F
#134E68
#0C3141
Base = 300Lightest = 50 · #F3F9FCDarkest = 950 · #0C3141
:root {
  --brand-50: #F3F9FC;
  --brand-100: #E7F3F9;
  --brand-200: #C8E7F4;
  --brand-300: #87cfee;
  --brand-400: #6CC4EA;
  --brand-500: #3AB0E3;
  --brand-600: #1E9FD6;
  --brand-700: #1984B3;
  --brand-800: #146A8F;
  --brand-900: #134E68;
  --brand-950: #0C3141;
  --brand: #87cfee;
  --brand-ink: #000000;
}

Colors that work with #87cfee

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#F4F9FA
Tinted page background
Border#C0DFED
Hairlines and dividers
Muted text#4B839B
Captions on the surface
Accent#B71E15
Second voice, not a rival
Dark variant#105370
Hover, pressed, headers
Light variant#E9F6FC
Selected rows, tints
Dark surface#141F24
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 #87cfee

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
  • Thin strokes and 1px borders — they disappear on light UI
  • 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#EEA687
Analogous left#87EEDA
Analogous right#879BEE
Split-complement 1#EE879B
Split-complement 2#EEDA87
Triadic 1#EE87CF
Triadic 2#CFEE87
Tetradic#DA87EE

RGB percentages

Red52.9%
Green81.2%
Blue93.3%

CMYK percentages

Cyan43.3%
Magenta13.0%
Yellow0.0%
Key (black)6.7%

Color previews

#87cfee text on a black background

contrast 12.19:1

Card sample

#87cfee text on a white background

contrast 1.72:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(135, 207, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(135, 207, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #87cfee;
background: linear-gradient(135deg, #87cfee, #878AEE);

Monochromatic scale

Palettes built from #87cfee

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.

#87cfee in the real world

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

Industries
TechnologyTravelHealthcareMedia
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

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

#87cfee, answered

What color is #87cfee?

#87cfee is a light electric cyan — the CSS keyword Sky Blue. It sits at 198° on the hue wheel with 75% saturation and 73% lightness, which reads as cool.

What is the RGB value of #87cfee?

rgb(135, 207, 238) — 135 red, 207 green and 238 blue out of 255, or 52.9% / 81.2% / 93.3% by channel.

Is #87cfee a light or a dark color?

It is a light color. Relative luminance is 0.5595 and perceived brightness is 75%, so black text on it reaches 12.19:1.

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

Black. It scores 12.19:1 against #87cfee, versus 1.72:1 for white — AAA at any size.

What is the complementary color of #87cfee?

#EEA687 sits directly opposite on the wheel. Softer options are the split-complements #EE879B and #EEDA87, which give the same contrast with far less vibration.

What colors go well with #87cfee?

For interface work: #F4F9FA as the surface, #C0DFED for borders, #4B839B for secondary text, #B71E15 as an accent and #105370 for hover and pressed states. For a palette, the analogous pair #87EEDA and #879BEE stays calm, while #EEA687 is the loudest partner.

What is #87cfee in CMYK for printing?

cmyk(43%, 13%, 0%, 7%). 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 #87cfee warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #87EEE7; nudged cooler, #85C0EF.

Work with #87cfee in the Color Lab