#51CEEF#51CEEF

#51CEEF is a light, moderate cyan. Relative luminance 0.521; OKLCH L 79.5% C 0.118 H 218.6°. Best body text is #000000 at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#51CEEF
RGB	rgb(81, 206, 239)
HSL	hsl(193, 83%, 63%)
HSV	hsv(193, 66%, 94%)
CMYK	cmyk(66.1%, 13.8%, 0%, 6.3%)
CIE-LAB	lab(77.35, -24.47, -26.43)
CIE-LCH	lch(77.35, 36.02, 227.20°)
OKLab	oklab(79.5% -0.0923 -0.0736)
OKLCH	oklch(79.5% 0.118 218.6)
XYZ	xyz(41.0382, 52.1194, 89.5419)
Luminance	0.5212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CEEF #EF7251

analogous

#51EFC1 #51CEEF #517FEF

triadic

#51CEEF #EF51CE #CEEF51

tetradic

#51CEEF #C151EF #EF7251 #7FEF51

square

#51CEEF #C151EF #EF7251 #7FEF51

split-complementary

#51CEEF #EF517F #EFC151

monochromatic

#1193B5 #19BEEA #51CEEF #89DEF4 #C1EEF9

Accessibility & contrast

On white

1.84

#51CEEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.42

#51CEEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CEEF

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CEEF	#FFFFFF	#000000	##000000
##51CEEF	1.00	1.84	11.42	11.42
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.42	21.00	1.00	1.00
##000000	11.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9C8F1

Deuteranopia (green-blind)

#A3B8EF

Tritanopia (blue-blind)

#00D9D8

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51ceef;
/* rgb */ color: rgb(81, 206, 239);
/* oklch */ color: oklch(79.5% 0.118 218.6);

Tailwind

colors: {
  custom: {
    50: '#93ddf4',
    500: '#51ceef',
    950: '#000000',
  },
}

SCSS

$custom: #51ceef;
$custom-light: #93ddf4;
$custom-dark: #000000;

JSON

{
  "hex": "#51ceef",
  "rgb": {
    "r": 81,
    "g": 206,
    "b": 239
  },
  "hsl": {
    "h": 192.532,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.79496,
    "c": 0.11804,
    "h": 218.6
  },
  "luminance": 0.52124
}

Semantic roles & 50–950 ramp

primary

#51CEEF

secondary

#B54B30

accent

#3306E0

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #51CEEF

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

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