#51D8CB#51D8CB

#51D8CB is a light, moderate teal. Relative luminance 0.552; OKLCH L 80.6% C 0.118 H 186.2°. Best body text is #000000 at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#51D8CB
RGB	rgb(81, 216, 203)
HSL	hsl(174, 63%, 58%)
HSV	hsv(174, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 6%, 15.3%)
CIE-LAB	lab(79.14, -39.41, -4.45)
CIE-LCH	lch(79.14, 39.66, 186.45°)
OKLab	oklab(80.57% -0.1171 -0.0127)
OKLCH	oklch(80.57% 0.118 186.2)
XYZ	xyz(38.7238, 55.1687, 65.0962)
Luminance	0.5517 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8CB #D8515E

analogous

#51D887 #51D8CB #51A1D8

triadic

#51D8CB #CB51D8 #D8CB51

tetradic

#51D8CB #8751D8 #D8515E #A1D851

square

#51D8CB #8751D8 #D8515E #A1D851

split-complementary

#51D8CB #D851A1 #D88751

monochromatic

#208F84 #2BC1B2 #51D8CB #83E3DA #B5EEE9

Accessibility & contrast

On white

1.74

#51D8CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.03

#51D8CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8CB

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8CB	#FFFFFF	#000000	##000000
##51D8CB	1.00	1.74	12.03	12.03
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.03	21.00	1.00	1.00
##000000	12.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDCDCB

Deuteranopia (green-blind)

#B9BECC

Tritanopia (blue-blind)

#00DDD4

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d8cb;
/* rgb */ color: rgb(81, 216, 203);
/* oklch */ color: oklch(80.6% 0.118 186.2);

Tailwind

colors: {
  custom: {
    50: '#91e4da',
    500: '#51d8cb',
    950: '#000000',
  },
}

SCSS

$custom: #51d8cb;
$custom-light: #91e4da;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8cb",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 203
  },
  "hsl": {
    "h": 174.222,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.80565,
    "c": 0.11781,
    "h": 186.2
  },
  "luminance": 0.55173
}

Semantic roles & 50–950 ramp

primary

#51D8CB

secondary

#943942

accent

#4151E6

background

#FCFEFE

surface

#F5FCFB

border

#CFD5D4

text

#0E1614

muted

#7F8483

Preview Lab

Preview with #51D8CB

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

Preview Lab → · Contrast checker → · Palette generator →