#51D9BB#51D9BB

#51D9BB is a light, vivid teal. Relative luminance 0.550; OKLCH L 80.3% C 0.126 H 175.6°. Best body text is #000000 at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#51D9BB
RGB	rgb(81, 217, 187)
HSL	hsl(167, 64%, 58%)
HSV	hsv(167, 63%, 85%)
CMYK	cmyk(62.7%, 0%, 13.8%, 14.9%)
CIE-LAB	lab(79.02, -43.91, 3.91)
CIE-LCH	lch(79.02, 44.09, 174.91°)
OKLab	oklab(80.33% -0.1253 0.0097)
OKLCH	oklch(80.33% 0.126 175.6)
XYZ	xyz(37.1715, 54.9589, 55.6532)
Luminance	0.5496 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D9BB #D9516F

analogous

#51D977 #51D9BB #51B3D9

triadic

#51D9BB #BB51D9 #D9BB51

tetradic

#51D9BB #7751D9 #D9516F #B3D951

square

#51D9BB #7751D9 #D9516F #B3D951

split-complementary

#51D9BB #D951B3 #D97751

monochromatic

#1F9077 #2AC2A1 #51D9BB #83E4CF #B5EFE2

Accessibility & contrast

On white

1.75

#51D9BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.99

#51D9BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9BB

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D9BB	#FFFFFF	#000000	##000000
##51D9BB	1.00	1.75	11.99	11.99
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.99	21.00	1.00	1.00
##000000	11.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2CCBA

Deuteranopia (green-blind)

#BEBEBD

Tritanopia (blue-blind)

#00DCD0

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d9bb;
/* rgb */ color: rgb(81, 217, 187);
/* oklch */ color: oklch(80.3% 0.126 175.6);

Tailwind

colors: {
  custom: {
    50: '#90e5cf',
    500: '#51d9bb',
    950: '#000000',
  },
}

SCSS

$custom: #51d9bb;
$custom-light: #90e5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#51d9bb",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 187
  },
  "hsl": {
    "h": 166.765,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.80329,
    "c": 0.12564,
    "h": 175.6
  },
  "luminance": 0.54963
}

Semantic roles & 50–950 ramp

primary

#51D9BB

secondary

#95394D

accent

#4165E7

background

#FCFEFE

surface

#F5FCFB

border

#CFD5D4

text

#0E1613

muted

#7F8483

Preview Lab

Preview with #51D9BB

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

Preview Lab → · Contrast checker → · Palette generator →