#51ADCC#51ADCC

#51ADCC is a light, moderate cyan. Relative luminance 0.360; OKLCH L 70.4% C 0.098 H 223.0°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#51ADCC
RGB	rgb(81, 173, 204)
HSL	hsl(195, 55%, 56%)
HSV	hsv(195, 60%, 80%)
CMYK	cmyk(60.3%, 15.2%, 0%, 20%)
CIE-LAB	lab(66.51, -18.17, -23.97)
CIE-LCH	lch(66.51, 30.07, 232.84°)
OKLab	oklab(70.4% -0.0715 -0.0667)
OKLCH	oklch(70.4% 0.098 223)
XYZ	xyz(29.2317, 35.9932, 62.5219)
Luminance	0.3600 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ADCC #CC7051

analogous

#51CCAD #51ADCC #516FCC

triadic

#51ADCC #CC51AD #ADCC51

tetradic

#51ADCC #AD51CC #CC7051 #6FCC51

square

#51ADCC #AD51CC #CC7051 #6FCC51

split-complementary

#51ADCC #CC516F #CCAD51

monochromatic

#25677E #338EAD #51ADCC #80C3DA #B0DAE8

Accessibility & contrast

On white

2.56

#51ADCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#51ADCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ADCC

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ADCC	#FFFFFF	#000000	##000000
##51ADCC	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BA9CE

Deuteranopia (green-blind)

#8A9CCC

Tritanopia (blue-blind)

#00B7B7

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51adcc;
/* rgb */ color: rgb(81, 173, 204);
/* oklch */ color: oklch(70.4% 0.098 223.0);

Tailwind

colors: {
  custom: {
    50: '#8dc5db',
    500: '#51adcc',
    950: '#000000',
  },
}

SCSS

$custom: #51adcc;
$custom-light: #8dc5db;
$custom-dark: #000000;

JSON

{
  "hex": "#51adcc",
  "rgb": {
    "r": 81,
    "g": 173,
    "b": 204
  },
  "hsl": {
    "h": 195.122,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.70398,
    "c": 0.09782,
    "h": 223
  },
  "luminance": 0.35996
}

Semantic roles & 50–950 ramp

primary

#51ADCC

secondary

#D6B0A3

accent

#6F4ADE

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51ADCC

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

Preview Lab → · Contrast checker → · Palette generator →