#51DAFD#51DAFD

#51DAFD is a very light, vivid cyan. Relative luminance 0.590; OKLCH L 82.8% C 0.126 H 218.2°. Best body text is #000000 at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#51DAFD
RGB	rgb(81, 218, 253)
HSL	hsl(192, 98%, 65%)
HSV	hsv(192, 68%, 99%)
CMYK	cmyk(68%, 13.8%, 0%, 0.8%)
CIE-LAB	lab(81.28, -26.22, -27.88)
CIE-LCH	lch(81.28, 38.27, 226.76°)
OKLab	oklab(82.81% -0.0987 -0.0777)
OKLCH	oklch(82.81% 0.126 218.2)
XYZ	xyz(46.1870, 58.9788, 101.8593)
Luminance	0.5898 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DAFD #FD7451

analogous

#51FDCA #51DAFD #5184FD

triadic

#51DAFD #FD51DA #DAFD51

tetradic

#51DAFD #CA51FD #FD7451 #84FD51

square

#51DAFD #CA51FD #FD7451 #84FD51

split-complementary

#51DAFD #FD5184 #FDCA51

monochromatic

#02A7D1 #14CDFC #51DAFD #8EE7FE #CAF4FE

Accessibility & contrast

On white

1.64

#51DAFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.80

#51DAFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DAFD

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DAFD	#FFFFFF	#000000	##000000
##51DAFD	1.00	1.64	12.80	12.80
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.80	21.00	1.00	1.00
##000000	12.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4D4FF

Deuteranopia (green-blind)

#ABC2FD

Tritanopia (blue-blind)

#00E6E5

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51dafd;
/* rgb */ color: rgb(81, 218, 253);
/* oklch */ color: oklch(82.8% 0.126 218.2);

Tailwind

colors: {
  custom: {
    50: '#95e5fe',
    500: '#51dafd',
    950: '#000000',
  },
}

SCSS

$custom: #51dafd;
$custom-light: #95e5fe;
$custom-dark: #000000;

JSON

{
  "hex": "#51dafd",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 253
  },
  "hsl": {
    "h": 192.209,
    "s": 97.727,
    "l": 65.49
  },
  "oklch": {
    "l": 0.82812,
    "c": 0.12567,
    "h": 218.2
  },
  "luminance": 0.58984
}

Semantic roles & 50–950 ramp

primary

#51DAFD

secondary

#CC4826

accent

#2F00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DAFD

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

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