#51CDE8#51CDE8

#51CDE8 is a light, moderate cyan. Relative luminance 0.512; OKLCH L 79.0% C 0.114 H 214.8°. Best body text is #000000 at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#51CDE8
RGB	rgb(81, 205, 232)
HSL	hsl(191, 77%, 61%)
HSV	hsv(191, 65%, 91%)
CMYK	cmyk(65.1%, 11.6%, 0%, 9%)
CIE-LAB	lab(76.82, -26.07, -23.48)
CIE-LCH	lch(76.82, 35.09, 222.01°)
OKLab	oklab(78.99% -0.0939 -0.0653)
OKLCH	oklch(78.99% 0.114 214.8)
XYZ	xyz(39.7841, 51.2338, 84.1207)
Luminance	0.5124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CDE8 #E86C51

analogous

#51E8B7 #51CDE8 #5182E8

triadic

#51CDE8 #E851CD #CDE851

tetradic

#51CDE8 #B751E8 #E86C51 #82E851

square

#51CDE8 #B751E8 #E86C51 #82E851

split-complementary

#51CDE8 #E85182 #E8B751

monochromatic

#168EA8 #1DBCDE #51CDE8 #87DDEF #BDECF6

Accessibility & contrast

On white

1.87

#51CDE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.25

#51CDE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CDE8

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CDE8	#FFFFFF	#000000	##000000
##51CDE8	1.00	1.87	11.25	11.25
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.25	21.00	1.00	1.00
##000000	11.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC7EA

Deuteranopia (green-blind)

#A4B7E8

Tritanopia (blue-blind)

#00D7D5

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51cde8;
/* rgb */ color: rgb(81, 205, 232);
/* oklch */ color: oklch(79.0% 0.114 214.8);

Tailwind

colors: {
  custom: {
    50: '#92dcef',
    500: '#51cde8',
    950: '#000000',
  },
}

SCSS

$custom: #51cde8;
$custom-light: #92dcef;
$custom-dark: #000000;

JSON

{
  "hex": "#51cde8",
  "rgb": {
    "r": 81,
    "g": 205,
    "b": 232
  },
  "hsl": {
    "h": 190.728,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.78989,
    "c": 0.11441,
    "h": 214.8
  },
  "luminance": 0.51238
}

Semantic roles & 50–950 ramp

primary

#51CDE8

secondary

#AA4833

accent

#310DD9

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51CDE8

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

Preview Lab → · Contrast checker → · Palette generator →