#51CCFF#51CCFF

#51CCFF is a light, vivid cyan. Relative luminance 0.522; OKLCH L 79.7% C 0.129 H 229.2°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#51CCFF
RGB	rgb(81, 204, 255)
HSL	hsl(198, 100%, 66%)
HSV	hsv(198, 68%, 100%)
CMYK	cmyk(68.2%, 20%, 0%, 0%)
CIE-LAB	lab(77.37, -18.54, -34.96)
CIE-LCH	lch(77.37, 39.57, 242.06°)
OKLab	oklab(79.71% -0.0845 -0.098)
OKLCH	oklch(79.71% 0.129 229.2)
XYZ	xyz(43.0290, 52.1503, 102.3866)
Luminance	0.5215 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CCFF #FF8451

analogous

#51FFDB #51CCFF #5175FF

triadic

#51CCFF #FF51CC #CCFF51

tetradic

#51CCFF #DB51FF #FF8451 #75FF51

square

#51CCFF #DB51FF #FF8451 #75FF51

split-complementary

#51CCFF #FF5175 #FFDB51

monochromatic

#0097D6 #14BAFF #51CCFF #8EDEFF #CBF0FF

Accessibility & contrast

On white

1.84

#51CCFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#51CCFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CCFF

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CCFF	#FFFFFF	#000000	##000000
##51CCFF	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C9FF

Deuteranopia (green-blind)

#9AB8FE

Tritanopia (blue-blind)

#00DADD

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51ccff;
/* rgb */ color: rgb(81, 204, 255);
/* oklch */ color: oklch(79.7% 0.129 229.2);

Tailwind

colors: {
  custom: {
    50: '#95dbff',
    500: '#51ccff',
    950: '#000000',
  },
}

SCSS

$custom: #51ccff;
$custom-light: #95dbff;
$custom-dark: #000000;

JSON

{
  "hex": "#51ccff",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 255
  },
  "hsl": {
    "h": 197.586,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.79706,
    "c": 0.12938,
    "h": 229.2
  },
  "luminance": 0.52155
}

Semantic roles & 50–950 ramp

primary

#51CCFF

secondary

#D05725

accent

#4300E6

background

#FCFEFF

surface

#F5FBFF

border

#CFD4D7

text

#0F1518

muted

#808486

Preview Lab

Preview with #51CCFF

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

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