#51D8DF#51D8DF

#51D8DF is a light, moderate teal. Relative luminance 0.562; OKLCH L 81.2% C 0.116 H 200.0°. Best body text is #000000 at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#51D8DF
RGB	rgb(81, 216, 223)
HSL	hsl(183, 69%, 60%)
HSV	hsv(183, 64%, 87%)
CMYK	cmyk(63.7%, 3.1%, 0%, 12.5%)
CIE-LAB	lab(79.72, -33.98, -14.28)
CIE-LCH	lch(79.72, 36.86, 202.79°)
OKLab	oklab(81.23% -0.1086 -0.0396)
OKLCH	oklch(81.23% 0.116 200)
XYZ	xyz(41.2627, 56.1842, 78.4678)
Luminance	0.5619 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8DF #DF5851

analogous

#51DF9F #51D8DF #5191DF

triadic

#51D8DF #DF51D8 #D8DF51

tetradic

#51D8DF #9F51DF #DF5851 #91DF51

square

#51D8DF #9F51DF #DF5851 #91DF51

split-complementary

#51D8DF #DF5191 #DF9F51

monochromatic

#1C9399 #26C5CD #51D8DF #85E4E9 #B8EFF2

Accessibility & contrast

On white

1.72

#51D8DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.24

#51D8DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8DF

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8DF	#FFFFFF	#000000	##000000
##51D8DF	1.00	1.72	12.24	12.24
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.24	21.00	1.00	1.00
##000000	12.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9CFE0

Deuteranopia (green-blind)

#B3BFE0

Tritanopia (blue-blind)

#00DFDA

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d8df;
/* rgb */ color: rgb(81, 216, 223);
/* oklch */ color: oklch(81.2% 0.116 200.0);

Tailwind

colors: {
  custom: {
    50: '#92e4e9',
    500: '#51d8df',
    950: '#000000',
  },
}

SCSS

$custom: #51d8df;
$custom-light: #92e4e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8df",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 223
  },
  "hsl": {
    "h": 182.958,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.81228,
    "c": 0.1156,
    "h": 200
  },
  "luminance": 0.56189
}

Semantic roles & 50–950 ramp

primary

#51D8DF

secondary

#9D3C37

accent

#453CEC

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D8DF

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

Preview Lab → · Contrast checker → · Palette generator →