#51CCF0#51CCF0

#51CCF0 is a light, moderate cyan. Relative luminance 0.512; OKLCH L 79.1% C 0.119 H 220.8°. Best body text is #000000 at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#51CCF0
RGB	rgb(81, 204, 240)
HSL	hsl(194, 84%, 63%)
HSV	hsv(194, 66%, 94%)
CMYK	cmyk(66.3%, 15%, 0%, 5.9%)
CIE-LAB	lab(76.81, -23.16, -27.79)
CIE-LCH	lch(76.81, 36.18, 230.18°)
OKLab	oklab(79.08% -0.0899 -0.0775)
OKLCH	oklch(79.08% 0.119 220.8)
XYZ	xyz(40.7080, 51.2219, 90.1626)
Luminance	0.5123 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CCF0 #F07551

analogous

#51F0C4 #51CCF0 #517CF0

triadic

#51CCF0 #F051CC #CCF051

tetradic

#51CCF0 #C451F0 #F07551 #7CF051

square

#51CCF0 #C451F0 #F07551 #7CF051

split-complementary

#51CCF0 #F0517C #F0C451

monochromatic

#1091B7 #19BBEB #51CCF0 #89DDF5 #C2EDFA

Accessibility & contrast

On white

1.87

#51CCF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.25

#51CCF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CCF0

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CCF0	#FFFFFF	#000000	##000000
##51CCF0	1.00	1.87	11.25	11.25
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.25	21.00	1.00	1.00
##000000	11.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C7F2

Deuteranopia (green-blind)

#A0B6F0

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51ccf0;
/* rgb */ color: rgb(81, 204, 240);
/* oklch */ color: oklch(79.1% 0.119 220.8);

Tailwind

colors: {
  custom: {
    50: '#93dbf5',
    500: '#51ccf0',
    950: '#000000',
  },
}

SCSS

$custom: #51ccf0;
$custom-light: #93dbf5;
$custom-dark: #000000;

JSON

{
  "hex": "#51ccf0",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 240
  },
  "hsl": {
    "h": 193.585,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.79076,
    "c": 0.1187,
    "h": 220.8
  },
  "luminance": 0.51226
}

Semantic roles & 50–950 ramp

primary

#51CCF0

secondary

#B64E2F

accent

#3705E1

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #51CCF0

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

Preview Lab → · Contrast checker → · Palette generator →