#51CFEE#51CFEE

#51CFEE is a light, moderate cyan. Relative luminance 0.525; OKLCH L 79.7% C 0.118 H 217.2°. Best body text is #000000 at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#51CFEE
RGB	rgb(81, 207, 238)
HSL	hsl(192, 82%, 63%)
HSV	hsv(192, 66%, 93%)
CMYK	cmyk(66%, 13%, 0%, 6.7%)
CIE-LAB	lab(77.60, -25.27, -25.50)
CIE-LCH	lch(77.60, 35.90, 225.26°)
OKLab	oklab(79.69% -0.0936 -0.071)
OKLCH	oklch(79.69% 0.118 217.2)
XYZ	xyz(41.1324, 52.5435, 88.8465)
Luminance	0.5255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CFEE #EE7051

analogous

#51EEBE #51CFEE #5181EE

triadic

#51CFEE #EE51CF #CFEE51

tetradic

#51CFEE #BE51EE #EE7051 #81EE51

square

#51CFEE #BE51EE #EE7051 #81EE51

split-complementary

#51CFEE #EE5181 #EEBE51

monochromatic

#1193B3 #19C0E9 #51CFEE #89DEF3 #C1EEF9

Accessibility & contrast

On white

1.82

#51CFEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.51

#51CFEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CFEE

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CFEE	#FFFFFF	#000000	##000000
##51CFEE	1.00	1.82	11.51	11.51
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.51	21.00	1.00	1.00
##000000	11.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC9F0

Deuteranopia (green-blind)

#A4B9EE

Tritanopia (blue-blind)

#00DAD9

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51cfee;
/* rgb */ color: rgb(81, 207, 238);
/* oklch */ color: oklch(79.7% 0.118 217.2);

Tailwind

colors: {
  custom: {
    50: '#93def3',
    500: '#51cfee',
    950: '#000000',
  },
}

SCSS

$custom: #51cfee;
$custom-light: #93def3;
$custom-dark: #000000;

JSON

{
  "hex": "#51cfee",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 238
  },
  "hsl": {
    "h": 191.847,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.79687,
    "c": 0.11752,
    "h": 217.2
  },
  "luminance": 0.52548
}

Semantic roles & 50–950 ramp

primary

#51CFEE

secondary

#B34A30

accent

#3107DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #51CFEE

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

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