#51D8CC#51D8CC

#51D8CC is a light, moderate teal. Relative luminance 0.552; OKLCH L 80.6% C 0.118 H 186.8°. Best body text is #000000 at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#51D8CC
RGB	rgb(81, 216, 204)
HSL	hsl(175, 63%, 58%)
HSV	hsv(175, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 5.6%, 15.3%)
CIE-LAB	lab(79.17, -39.15, -4.95)
CIE-LCH	lch(79.17, 39.46, 187.20°)
OKLab	oklab(80.6% -0.1167 -0.014)
OKLCH	oklch(80.6% 0.118 186.8)
XYZ	xyz(38.8433, 55.2165, 65.7258)
Luminance	0.5522 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8CC #D8515D

analogous

#51D888 #51D8CC #51A0D8

triadic

#51D8CC #CC51D8 #D8CC51

tetradic

#51D8CC #8851D8 #D8515D #A0D851

square

#51D8CC #8851D8 #D8515D #A0D851

split-complementary

#51D8CC #D851A0 #D88851

monochromatic

#208F85 #2BC1B3 #51D8CC #83E3DB #B5EEE9

Accessibility & contrast

On white

1.74

#51D8CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.04

#51D8CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8CC

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8CC	#FFFFFF	#000000	##000000
##51D8CC	1.00	1.74	12.04	12.04
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.04	21.00	1.00	1.00
##000000	12.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDCDCC

Deuteranopia (green-blind)

#B9BECD

Tritanopia (blue-blind)

#00DDD4

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d8cc;
/* rgb */ color: rgb(81, 216, 204);
/* oklch */ color: oklch(80.6% 0.118 186.8);

Tailwind

colors: {
  custom: {
    50: '#91e4db',
    500: '#51d8cc',
    950: '#000000',
  },
}

SCSS

$custom: #51d8cc;
$custom-light: #91e4db;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8cc",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 204
  },
  "hsl": {
    "h": 174.667,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.80597,
    "c": 0.11753,
    "h": 186.8
  },
  "luminance": 0.55221
}

Semantic roles & 50–950 ramp

primary

#51D8CC

secondary

#943941

accent

#4150E6

background

#FCFEFE

surface

#F5FCFB

border

#CFD5D4

text

#0E1615

muted

#7F8484

Preview Lab

Preview with #51D8CC

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

Preview Lab → · Contrast checker → · Palette generator →