#51D9DF#51D9DF

#51D9DF is a light, moderate teal. Relative luminance 0.567; OKLCH L 81.5% C 0.116 H 199.3°. Best body text is #000000 at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#51D9DF
RGB	rgb(81, 217, 223)
HSL	hsl(183, 69%, 60%)
HSV	hsv(183, 64%, 87%)
CMYK	cmyk(63.7%, 2.7%, 0%, 12.5%)
CIE-LAB	lab(80.01, -34.45, -13.84)
CIE-LCH	lch(80.01, 37.13, 201.89°)
OKLab	oklab(81.46% -0.1096 -0.0384)
OKLCH	oklch(81.46% 0.116 199.3)
XYZ	xyz(41.5197, 56.6982, 78.5534)
Luminance	0.5670 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D9DF #DF5751

analogous

#51DF9E #51D9DF #5192DF

triadic

#51D9DF #DF51D9 #D9DF51

tetradic

#51D9DF #9E51DF #DF5751 #92DF51

square

#51D9DF #9E51DF #DF5751 #92DF51

split-complementary

#51D9DF #DF5192 #DF9E51

monochromatic

#1C9499 #26C6CD #51D9DF #85E4E9 #B8F0F2

Accessibility & contrast

On white

1.70

#51D9DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.34

#51D9DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9DF

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D9DF	#FFFFFF	#000000	##000000
##51D9DF	1.00	1.70	12.34	12.34
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.34	21.00	1.00	1.00
##000000	12.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAD0E0

Deuteranopia (green-blind)

#B4C0E0

Tritanopia (blue-blind)

#00E0DA

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d9df;
/* rgb */ color: rgb(81, 217, 223);
/* oklch */ color: oklch(81.5% 0.116 199.3);

Tailwind

colors: {
  custom: {
    50: '#92e5e9',
    500: '#51d9df',
    950: '#000000',
  },
}

SCSS

$custom: #51d9df;
$custom-light: #92e5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51d9df",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 223
  },
  "hsl": {
    "h": 182.535,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.81463,
    "c": 0.11614,
    "h": 199.3
  },
  "luminance": 0.56703
}

Semantic roles & 50–950 ramp

primary

#51D9DF

secondary

#9D3B37

accent

#433CEC

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1616

muted

#7F8484

Preview Lab

Preview with #51D9DF

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

Preview Lab → · Contrast checker → · Palette generator →