#81B4EB#81B4EB

#81B4EB is a light, moderate cyan. Relative luminance 0.433; OKLCH L 75.5% C 0.096 H 251.0°. Best body text is #000000 at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#81B4EB
RGB	rgb(129, 180, 235)
HSL	hsl(211, 73%, 71%)
HSV	hsv(211, 45%, 92%)
CMYK	cmyk(45.1%, 23.4%, 0%, 7.8%)
CIE-LAB	lab(71.76, -2.45, -32.71)
CIE-LCH	lch(71.76, 32.80, 265.71°)
OKLab	oklab(75.51% -0.0314 -0.0911)
OKLCH	oklch(75.51% 0.096 251)
XYZ	xyz(40.3649, 43.3051, 84.8129)
Luminance	0.4331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B4EB #EBB881

analogous

#81E9EB #81B4EB #8381EB

triadic

#81B4EB #EB81B4 #B4EB81

tetradic

#81B4EB #EB81E9 #EBB881 #81EB83

square

#81B4EB #EB81E9 #EBB881 #81EB83

split-complementary

#81B4EB #EB8381 #E9EB81

monochromatic

#2175D1 #4C95E3 #81B4EB #B6D3F3 #E5EFFB

Accessibility & contrast

On white

2.17

#81B4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.66

#81B4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B4EB

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B4EB	#FFFFFF	#000000	##000000
##81B4EB	1.00	2.17	9.66	9.66
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.66	21.00	1.00	1.00
##000000	9.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB6EE

Deuteranopia (green-blind)

#91ABEA

Tritanopia (blue-blind)

#56C1C7

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #81b4eb;
/* rgb */ color: rgb(129, 180, 235);
/* oklch */ color: oklch(75.5% 0.096 251.0);

Tailwind

colors: {
  custom: {
    50: '#aacaf1',
    500: '#81b4eb',
    950: '#000000',
  },
}

SCSS

$custom: #81b4eb;
$custom-light: #aacaf1;
$custom-dark: #000000;

JSON

{
  "hex": "#81b4eb",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 235
  },
  "hsl": {
    "h": 211.132,
    "s": 72.603,
    "l": 71.373
  },
  "oklch": {
    "l": 0.75514,
    "c": 0.09635,
    "h": 251
  },
  "luminance": 0.43308
}

Semantic roles & 50–950 ramp

primary

#81B4EB

secondary

#F2E4D6

accent

#7611D5

background

#FAFCFE

surface

#F4F8FD

border

#CED1D5

text

#101316

muted

#7F8284

Preview Lab

Preview with #81B4EB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →