#51D3E8#51D3E8

#51D3E8 is a light, moderate teal. Relative luminance 0.542; OKLCH L 80.4% C 0.116 H 210.1°. Best body text is #000000 at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#51D3E8
RGB	rgb(81, 211, 232)
HSL	hsl(188, 77%, 61%)
HSV	hsv(188, 65%, 91%)
CMYK	cmyk(65.1%, 9.1%, 0%, 9%)
CIE-LAB	lab(78.55, -29.01, -20.85)
CIE-LCH	lch(78.55, 35.73, 215.70°)
OKLab	oklab(80.38% -0.0999 -0.0579)
OKLCH	oklch(80.38% 0.116 210.1)
XYZ	xyz(41.2470, 54.1595, 84.6083)
Luminance	0.5416 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3E8 #E86651

analogous

#51E8B2 #51D3E8 #5188E8

triadic

#51D3E8 #E851D3 #D3E851

tetradic

#51D3E8 #B251E8 #E86651 #88E851

square

#51D3E8 #B251E8 #E86651 #88E851

split-complementary

#51D3E8 #E85188 #E8B251

monochromatic

#1694A8 #1DC4DE #51D3E8 #87E1EF #BDEEF6

Accessibility & contrast

On white

1.77

#51D3E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.83

#51D3E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3E8

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3E8	#FFFFFF	#000000	##000000
##51D3E8	1.00	1.77	11.83	11.83
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.83	21.00	1.00	1.00
##000000	11.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CCE9

Deuteranopia (green-blind)

#ABBBE8

Tritanopia (blue-blind)

#00DCD9

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51d3e8;
/* rgb */ color: rgb(81, 211, 232);
/* oklch */ color: oklch(80.4% 0.116 210.1);

Tailwind

colors: {
  custom: {
    50: '#93e1ef',
    500: '#51d3e8',
    950: '#000000',
  },
}

SCSS

$custom: #51d3e8;
$custom-light: #93e1ef;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3e8",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 232
  },
  "hsl": {
    "h": 188.344,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.80384,
    "c": 0.1155,
    "h": 210.1
  },
  "luminance": 0.54164
}

Semantic roles & 50–950 ramp

primary

#51D3E8

secondary

#AA4433

accent

#290DD9

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D3E8

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

Preview Lab → · Contrast checker → · Palette generator →