#51ABBD#51ABBD

#51ABBD is a light, moderate cyan. Relative luminance 0.345; OKLCH L 69.3% C 0.089 H 212.6°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX#51ABBD
RGBrgb(81, 171, 189)
HSLhsl(190, 45%, 53%)
HSVhsv(190, 57%, 74%)
CMYKcmyk(57.1%, 9.5%, 0%, 25.9%)
CIE-LABlab(65.39, -21.59, -17.36)
CIE-LCHlch(65.39, 27.71, 218.79°)
OKLaboklab(69.33% -0.0752 -0.0481)
OKLCHoklch(69.33% 0.089 212.6)
XYZxyz(27.1379, 34.5467, 53.3723)
Luminance0.3455 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51ABBD #BD6351
analogous
#51BD99 #51ABBD #5175BD
triadic
#51ABBD #BD51AB #ABBD51
tetradic
#51ABBD #9951BD #BD6351 #75BD51
square
#51ABBD #9951BD #BD6351 #75BD51
split-complementary
#51ABBD #BD5175 #BD9951
monochromatic
#29606B #398897 #51ABBD #7DC0CE #AAD6DF

Accessibility & contrast

On white

2.65
#51ABBD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.91
#51ABBD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABBD
7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51ABBD#FFFFFF#000000##000000
##51ABBD1.002.657.917.91
#FFFFFF2.651.0021.0021.00
#0000007.9121.001.001.00
##0000007.9121.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DA6BE
Deuteranopia (green-blind)
#8D9ABD
Tritanopia (blue-blind)
#00B2B0
Achromatopsia (no color)
#9F9F9F

Design tokens & code

CSS
--color: #51abbd;
/* rgb */ color: rgb(81, 171, 189);
/* oklch */ color: oklch(69.3% 0.089 212.6);
Tailwind
colors: {
  custom: {
    50: '#8bc4d0',
    500: '#51abbd',
    950: '#000000',
  },
}
SCSS
$custom: #51abbd;
$custom-light: #8bc4d0;
$custom-dark: #000000;
JSON
{
  "hex": "#51abbd",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 189
  },
  "hsl": {
    "h": 190,
    "s": 45,
    "l": 52.941
  },
  "oklch": {
    "l": 0.69325,
    "c": 0.08928,
    "h": 212.6
  },
  "luminance": 0.34549
}

Semantic roles & 50–950 ramp

primary
#51ABBD
secondary
#CCA59E
accent
#6953D5
background
#F9FCFC
surface
#F1F8F9
border
#CBD1D2
text
#0D1214
muted
#7E8182

Preview Lab

Preview with #51ABBD

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

Preview Lab → · Contrast checker → · Palette generator →

#51ABBD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva