#51CFEF#51CFEF

#51CFEF is a light, moderate cyan. Relative luminance 0.526; OKLCH L 79.7% C 0.118 H 217.8°. Best body text is #000000 at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#51CFEF
RGB	rgb(81, 207, 239)
HSL	hsl(192, 83%, 63%)
HSV	hsv(192, 66%, 94%)
CMYK	cmyk(66.1%, 13.4%, 0%, 6.3%)
CIE-LAB	lab(77.64, -24.97, -25.99)
CIE-LCH	lch(77.64, 36.04, 226.14°)
OKLab	oklab(79.73% -0.0932 -0.0724)
OKLCH	oklch(79.73% 0.118 217.8)
XYZ	xyz(41.2797, 52.6024, 89.6224)
Luminance	0.5261 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CFEF #EF7151

analogous

#51EFC0 #51CFEF #5180EF

triadic

#51CFEF #EF51CF #CFEF51

tetradic

#51CFEF #C051EF #EF7151 #80EF51

square

#51CFEF #C051EF #EF7151 #80EF51

split-complementary

#51CFEF #EF5180 #EFC051

monochromatic

#1194B5 #19C0EA #51CFEF #89DEF4 #C1EEF9

Accessibility & contrast

On white

1.82

#51CFEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.52

#51CFEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CFEF

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CFEF	#FFFFFF	#000000	##000000
##51CFEF	1.00	1.82	11.52	11.52
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.52	21.00	1.00	1.00
##000000	11.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC9F1

Deuteranopia (green-blind)

#A4B9EF

Tritanopia (blue-blind)

#00DAD9

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51cfef;
/* rgb */ color: rgb(81, 207, 239);
/* oklch */ color: oklch(79.7% 0.118 217.8);

Tailwind

colors: {
  custom: {
    50: '#93def4',
    500: '#51cfef',
    950: '#000000',
  },
}

SCSS

$custom: #51cfef;
$custom-light: #93def4;
$custom-dark: #000000;

JSON

{
  "hex": "#51cfef",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 239
  },
  "hsl": {
    "h": 192.152,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.79727,
    "c": 0.11805,
    "h": 217.8
  },
  "luminance": 0.52607
}

Semantic roles & 50–950 ramp

primary

#51CFEF

secondary

#B54B30

accent

#3206E0

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #51CFEF

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

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