#51D8CF#51D8CF

#51D8CF is a light, moderate teal. Relative luminance 0.554; OKLCH L 80.7% C 0.117 H 188.9°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#51D8CF
RGB	rgb(81, 216, 207)
HSL	hsl(176, 63%, 58%)
HSV	hsv(176, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 4.2%, 15.3%)
CIE-LAB	lab(79.25, -38.36, -6.43)
CIE-LCH	lch(79.25, 38.89, 189.51°)
OKLab	oklab(80.69% -0.1154 -0.018)
OKLCH	oklch(80.69% 0.117 188.9)
XYZ	xyz(39.2066, 55.3618, 67.6390)
Luminance	0.5537 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8CF #D8515A

analogous

#51D88B #51D8CF #519DD8

triadic

#51D8CF #CF51D8 #D8CF51

tetradic

#51D8CF #8B51D8 #D8515A #9DD851

square

#51D8CF #8B51D8 #D8515A #9DD851

split-complementary

#51D8CF #D8519D #D88B51

monochromatic

#208F87 #2BC1B7 #51D8CF #83E3DD #B5EEEB

Accessibility & contrast

On white

1.74

#51D8CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#51D8CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8CF

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8CF	#FFFFFF	#000000	##000000
##51D8CF	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDCDCF

Deuteranopia (green-blind)

#B8BED0

Tritanopia (blue-blind)

#00DDD5

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d8cf;
/* rgb */ color: rgb(81, 216, 207);
/* oklch */ color: oklch(80.7% 0.117 188.9);

Tailwind

colors: {
  custom: {
    50: '#91e4dd',
    500: '#51d8cf',
    950: '#000000',
  },
}

SCSS

$custom: #51d8cf;
$custom-light: #91e4dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8cf",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 207
  },
  "hsl": {
    "h": 176,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.80692,
    "c": 0.11679,
    "h": 188.9
  },
  "luminance": 0.55366
}

Semantic roles & 50–950 ramp

primary

#51D8CF

secondary

#94393F

accent

#414CE6

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1615

muted

#7F8484

Preview Lab

Preview with #51D8CF

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

Preview Lab → · Contrast checker → · Palette generator →