#51CEFD#51CEFD

#51CEFD is a light, vivid cyan. Relative luminance 0.530; OKLCH L 80.1% C 0.127 H 226.8°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#51CEFD
RGB	rgb(81, 206, 253)
HSL	hsl(196, 98%, 65%)
HSV	hsv(196, 68%, 99%)
CMYK	cmyk(68%, 18.6%, 0%, 0.8%)
CIE-LAB	lab(77.86, -20.19, -33.13)
CIE-LCH	lch(77.86, 38.80, 238.64°)
OKLab	oklab(80.07% -0.0871 -0.0927)
OKLCH	oklch(80.07% 0.127 226.8)
XYZ	xyz(43.1871, 52.9790, 100.8594)
Luminance	0.5298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CEFD #FD8051

analogous

#51FDD6 #51CEFD #5178FD

triadic

#51CEFD #FD51CE #CEFD51

tetradic

#51CEFD #D651FD #FD8051 #78FD51

square

#51CEFD #D651FD #FD8051 #78FD51

split-complementary

#51CEFD #FD5178 #FDD651

monochromatic

#0299D1 #14BDFC #51CEFD #8EDFFE #CAF0FE

Accessibility & contrast

On white

1.81

#51CEFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.60

#51CEFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CEFD

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CEFD	#FFFFFF	#000000	##000000
##51CEFD	1.00	1.81	11.60	11.60
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.60	21.00	1.00	1.00
##000000	11.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5CAFF

Deuteranopia (green-blind)

#9DB9FC

Tritanopia (blue-blind)

#00DCDD

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51cefd;
/* rgb */ color: rgb(81, 206, 253);
/* oklch */ color: oklch(80.1% 0.127 226.8);

Tailwind

colors: {
  custom: {
    50: '#95ddfe',
    500: '#51cefd',
    950: '#000000',
  },
}

SCSS

$custom: #51cefd;
$custom-light: #95ddfe;
$custom-dark: #000000;

JSON

{
  "hex": "#51cefd",
  "rgb": {
    "r": 81,
    "g": 206,
    "b": 253
  },
  "hsl": {
    "h": 196.395,
    "s": 97.727,
    "l": 65.49
  },
  "oklch": {
    "l": 0.80074,
    "c": 0.12725,
    "h": 226.8
  },
  "luminance": 0.52984
}

Semantic roles & 50–950 ramp

primary

#51CEFD

secondary

#CC5426

accent

#3F00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #51CEFD

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

Preview Lab → · Contrast checker → · Palette generator →