#51CCEB#51CCEB

#51CCEB is a light, moderate cyan. Relative luminance 0.509; OKLCH L 78.9% C 0.116 H 217.6°. Best body text is #000000 at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#51CCEB
RGB	rgb(81, 204, 235)
HSL	hsl(192, 79%, 62%)
HSV	hsv(192, 66%, 92%)
CMYK	cmyk(65.5%, 13.2%, 0%, 7.8%)
CIE-LAB	lab(76.64, -24.68, -25.38)
CIE-LCH	lch(76.64, 35.39, 225.80°)
OKLab	oklab(78.88% -0.0918 -0.0707)
OKLCH	oklch(78.88% 0.116 217.6)
XYZ	xyz(39.9754, 50.9289, 86.3046)
Luminance	0.5093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CCEB #EB7051

analogous

#51EBBD #51CCEB #517FEB

triadic

#51CCEB #EB51CC #CCEB51

tetradic

#51CCEB #BD51EB #EB7051 #7FEB51

square

#51CCEB #BD51EB #EB7051 #7FEB51

split-complementary

#51CCEB #EB517F #EBBD51

monochromatic

#148FAE #1ABCE5 #51CCEB #88DCF1 #BFECF8

Accessibility & contrast

On white

1.88

#51CCEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.19

#51CCEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CCEB

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CCEB	#FFFFFF	#000000	##000000
##51CCEB	1.00	1.88	11.19	11.19
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.19	21.00	1.00	1.00
##000000	11.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C6ED

Deuteranopia (green-blind)

#A2B6EB

Tritanopia (blue-blind)

#00D7D6

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51cceb;
/* rgb */ color: rgb(81, 204, 235);
/* oklch */ color: oklch(78.9% 0.116 217.6);

Tailwind

colors: {
  custom: {
    50: '#92dbf1',
    500: '#51cceb',
    950: '#000000',
  },
}

SCSS

$custom: #51cceb;
$custom-light: #92dbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#51cceb",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 235
  },
  "hsl": {
    "h": 192.078,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.78875,
    "c": 0.11584,
    "h": 217.6
  },
  "luminance": 0.50933
}

Semantic roles & 50–950 ramp

primary

#51CCEB

secondary

#AE4B32

accent

#340ADC

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51CCEB

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

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