#51C0CB#51C0CB

#51C0CB is a light, moderate teal. Relative luminance 0.438; OKLCH L 74.8% C 0.101 H 204.2°. Best body text is #000000 at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#51C0CB
RGB	rgb(81, 192, 203)
HSL	hsl(185, 54%, 56%)
HSV	hsv(185, 60%, 80%)
CMYK	cmyk(60.1%, 5.4%, 0%, 20.4%)
CIE-LAB	lab(72.07, -28.11, -14.99)
CIE-LCH	lch(72.07, 31.86, 208.07°)
OKLab	oklab(74.84% -0.0922 -0.0415)
OKLCH	oklch(74.84% 0.101 204.2)
XYZ	xyz(33.0179, 43.7570, 63.1942)
Luminance	0.4376 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C0CB #CB5C51

analogous

#51CB99 #51C0CB #5183CB

triadic

#51C0CB #CB51C0 #C0CB51

tetradic

#51C0CB #9951CB #CB5C51 #83CB51

square

#51C0CB #9951CB #CB5C51 #83CB51

split-complementary

#51C0CB #CB5183 #CB9951

monochromatic

#25757C #33A1AC #51C0CB #80D1D9 #AFE2E7

Accessibility & contrast

On white

2.15

#51C0CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.75

#51C0CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C0CB

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C0CB	#FFFFFF	#000000	##000000
##51C0CB	1.00	2.15	9.75	9.75
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.75	21.00	1.00	1.00
##000000	9.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2B9CC

Deuteranopia (green-blind)

#9FABCB

Tritanopia (blue-blind)

#00C7C3

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51c0cb;
/* rgb */ color: rgb(81, 192, 203);
/* oklch */ color: oklch(74.8% 0.101 204.2);

Tailwind

colors: {
  custom: {
    50: '#8ed3da',
    500: '#51c0cb',
    950: '#000000',
  },
}

SCSS

$custom: #51c0cb;
$custom-light: #8ed3da;
$custom-dark: #000000;

JSON

{
  "hex": "#51c0cb",
  "rgb": {
    "r": 81,
    "g": 192,
    "b": 203
  },
  "hsl": {
    "h": 185.41,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74843,
    "c": 0.10107,
    "h": 204.2
  },
  "luminance": 0.4376
}

Semantic roles & 50–950 ramp

primary

#51C0CB

secondary

#D5A7A3

accent

#584ADD

background

#F9FDFD

surface

#F2FAFA

border

#CCD3D3

text

#0D1414

muted

#7E8383

Preview Lab

Preview with #51C0CB

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

Preview Lab → · Contrast checker → · Palette generator →