#81BBCB#81BBCB

#81BBCB is a light, moderate cyan. Relative luminance 0.445; OKLCH L 75.8% C 0.064 H 216.9°. Best body text is #000000 at 9.90:1 contrast (WCAG AA passes).

Color values

HEX#81BBCB
RGBrgb(129, 187, 203)
HSLhsl(193, 42%, 65%)
HSVhsv(193, 36%, 80%)
CMYKcmyk(36.5%, 7.9%, 0%, 20.4%)
CIE-LABlab(72.57, -14.74, -14.03)
CIE-LCHlch(72.57, 20.35, 223.60°)
OKLaboklab(75.78% -0.0513 -0.0385)
OKLCHoklch(75.78% 0.064 216.9)
XYZxyz(37.5994, 44.5173, 63.0998)
Luminance0.4452 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81BBCB #CB9181
analogous
#81CBB6 #81BBCB #8196CB
triadic
#81BBCB #CB81BB #BBCB81
tetradic
#81BBCB #B681CB #CB9181 #96CB81
square
#81BBCB #B681CB #CB9181 #96CB81
split-complementary
#81BBCB #CB8196 #CBB681
monochromatic
#3D8294 #56A4B9 #81BBCB #ACD2DD #D8EAEF

Accessibility & contrast

On white

2.12
#81BBCB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.90
#81BBCB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BBCB
9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81BBCB#FFFFFF#000000##000000
##81BBCB1.002.129.909.90
#FFFFFF2.121.0021.0021.00
#0000009.9021.001.001.00
##0000009.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B0B7CC
Deuteranopia (green-blind)
#A4AECB
Tritanopia (blue-blind)
#65C1C0
Achromatopsia (no color)
#B2B2B2

Design tokens & code

CSS
--color: #81bbcb;
/* rgb */ color: rgb(129, 187, 203);
/* oklch */ color: oklch(75.8% 0.064 216.9);
Tailwind
colors: {
  custom: {
    50: '#a8cfda',
    500: '#81bbcb',
    950: '#000000',
  },
}
SCSS
$custom: #81bbcb;
$custom-light: #a8cfda;
$custom-dark: #000000;
JSON
{
  "hex": "#81bbcb",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 203
  },
  "hsl": {
    "h": 192.973,
    "s": 41.573,
    "l": 65.098
  },
  "oklch": {
    "l": 0.75783,
    "c": 0.0641,
    "h": 216.9
  },
  "luminance": 0.4452
}

Semantic roles & 50–950 ramp

primary
#81BBCB
secondary
#E0CDC7
accent
#4D31B5
background
#FAFCFD
surface
#F4F9FA
border
#CED2D3
text
#101314
muted
#7F8283

Preview Lab

Preview with #81BBCB

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

Preview Lab → · Contrast checker → · Palette generator →

#81BBCB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva