#51DBFF#51DBFF

#51DBFF is a very light, vivid cyan. Relative luminance 0.596; OKLCH L 83.1% C 0.127 H 218.7°. Best body text is #000000 at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#51DBFF
RGB	rgb(81, 219, 255)
HSL	hsl(192, 100%, 66%)
HSV	hsv(192, 68%, 100%)
CMYK	cmyk(68.2%, 14.1%, 0%, 0%)
CIE-LAB	lab(81.64, -26.11, -28.40)
CIE-LCH	lch(81.64, 38.57, 227.41°)
OKLab	oklab(83.12% -0.099 -0.0792)
OKLCH	oklch(83.12% 0.127 218.7)
XYZ	xyz(46.7674, 59.6271, 103.6328)
Luminance	0.5963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DBFF #FF7551

analogous

#51FFCC #51DBFF #5184FF

triadic

#51DBFF #FF51DB #DBFF51

tetradic

#51DBFF #CC51FF #FF7551 #84FF51

square

#51DBFF #CC51FF #FF7551 #84FF51

split-complementary

#51DBFF #FF5184 #FFCC51

monochromatic

#00A9D6 #14CEFF #51DBFF #8EE8FF #CBF4FF

Accessibility & contrast

On white

1.62

#51DBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.93

#51DBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DBFF

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DBFF	#FFFFFF	#000000	##000000
##51DBFF	1.00	1.62	12.93	12.93
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.93	21.00	1.00	1.00
##000000	12.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4D5FF

Deuteranopia (green-blind)

#ACC3FF

Tritanopia (blue-blind)

#00E7E6

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51dbff;
/* rgb */ color: rgb(81, 219, 255);
/* oklch */ color: oklch(83.1% 0.127 218.7);

Tailwind

colors: {
  custom: {
    50: '#96e6ff',
    500: '#51dbff',
    950: '#000000',
  },
}

SCSS

$custom: #51dbff;
$custom-light: #96e6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#51dbff",
  "rgb": {
    "r": 81,
    "g": 219,
    "b": 255
  },
  "hsl": {
    "h": 192.414,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.83121,
    "c": 0.12675,
    "h": 218.7
  },
  "luminance": 0.59632
}

Semantic roles & 50–950 ramp

primary

#51DBFF

secondary

#D04825

accent

#2F00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1618

muted

#808486

Preview Lab

Preview with #51DBFF

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

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