#51C0BB#51C0BB

#51C0BB is a light, moderate teal. Relative luminance 0.430; OKLCH L 74.3% C 0.101 H 191.1°. Best body text is #000000 at 9.61:1 contrast (WCAG AA passes).

Color values

HEX#51C0BB
RGBrgb(81, 192, 187)
HSLhsl(177, 47%, 54%)
HSVhsv(177, 58%, 75%)
CMYKcmyk(57.8%, 0%, 2.6%, 24.7%)
CIE-LABlab(71.58, -32.55, -6.99)
CIE-LCHlch(71.58, 33.29, 192.12°)
OKLaboklab(74.29% -0.099 -0.0194)
OKLCHoklch(74.29% 0.101 191.1)
XYZxyz(31.2087, 43.0333, 53.6656)
Luminance0.4304 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51C0BB #C05156
analogous
#51C083 #51C0BB #518DC0
triadic
#51C0BB #BB51C0 #C0BB51
tetradic
#51C0BB #8351C0 #C05156 #8DC051
square
#51C0BB #8351C0 #C05156 #8DC051
split-complementary
#51C0BB #C0518D #C08351
monochromatic
#286F6B #389B97 #51C0BB #7ED0CD #ABE1DE

Accessibility & contrast

On white

2.19
#51C0BB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.61
#51C0BB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C0BB
9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51C0BB#FFFFFF#000000##000000
##51C0BB1.002.199.619.61
#FFFFFF2.191.0021.0021.00
#0000009.6121.001.001.00
##0000009.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#B6B7BB
Deuteranopia (green-blind)
#A4AABC
Tritanopia (blue-blind)
#00C5BE
Achromatopsia (no color)
#AFAFAF

Design tokens & code

CSS
--color: #51c0bb;
/* rgb */ color: rgb(81, 192, 187);
/* oklch */ color: oklch(74.3% 0.101 191.1);
Tailwind
colors: {
  custom: {
    50: '#8dd3cf',
    500: '#51c0bb',
    950: '#000000',
  },
}
SCSS
$custom: #51c0bb;
$custom-light: #8dd3cf;
$custom-dark: #000000;
JSON
{
  "hex": "#51c0bb",
  "rgb": {
    "r": 81,
    "g": 192,
    "b": 187
  },
  "hsl": {
    "h": 177.297,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.74287,
    "c": 0.10085,
    "h": 191.1
  },
  "luminance": 0.43036
}

Semantic roles & 50–950 ramp

primary
#51C0BB
secondary
#CE9FA1
accent
#5157D6
background
#F9FDFC
surface
#F1FAF9
border
#CBD3D2
text
#0D1413
muted
#7E8382

Preview Lab

Preview with #51C0BB

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

Preview Lab → · Contrast checker → · Palette generator →

#51C0BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva