#51CAE8#51CAE8

#51CAE8 is a light, moderate cyan. Relative luminance 0.498; OKLCH L 78.3% C 0.114 H 217.2°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#51CAE8
RGB	rgb(81, 202, 232)
HSL	hsl(192, 77%, 61%)
HSV	hsv(192, 65%, 91%)
CMYK	cmyk(65.1%, 12.9%, 0%, 9%)
CIE-LAB	lab(75.95, -24.57, -24.80)
CIE-LCH	lch(75.95, 34.92, 225.27°)
OKLab	oklab(78.29% -0.0909 -0.069)
OKLCH	oklch(78.29% 0.114 217.2)
XYZ	xyz(39.0734, 49.8123, 83.8838)
Luminance	0.4982 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CAE8 #E86F51

analogous

#51E8BB #51CAE8 #517FE8

triadic

#51CAE8 #E851CA #CAE851

tetradic

#51CAE8 #BB51E8 #E86F51 #7FE851

square

#51CAE8 #BB51E8 #E86F51 #7FE851

split-complementary

#51CAE8 #E8517F #E8BB51

monochromatic

#168BA8 #1DB8DE #51CAE8 #87DAEF #BDEBF6

Accessibility & contrast

On white

1.92

#51CAE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#51CAE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAE8

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CAE8	#FFFFFF	#000000	##000000
##51CAE8	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C4EA

Deuteranopia (green-blind)

#A1B4E8

Tritanopia (blue-blind)

#00D5D3

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51cae8;
/* rgb */ color: rgb(81, 202, 232);
/* oklch */ color: oklch(78.3% 0.114 217.2);

Tailwind

colors: {
  custom: {
    50: '#92daef',
    500: '#51cae8',
    950: '#000000',
  },
}

SCSS

$custom: #51cae8;
$custom-light: #92daef;
$custom-dark: #000000;

JSON

{
  "hex": "#51cae8",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 232
  },
  "hsl": {
    "h": 191.921,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.78293,
    "c": 0.11418,
    "h": 217.2
  },
  "luminance": 0.49817
}

Semantic roles & 50–950 ramp

primary

#51CAE8

secondary

#E7B9AE

accent

#350DD9

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #51CAE8

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

Preview Lab → · Contrast checker → · Palette generator →