#51AFCD#51AFCD

#51AFCD is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.9% C 0.098 H 221.8°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#51AFCD
RGB	rgb(81, 175, 205)
HSL	hsl(195, 55%, 56%)
HSV	hsv(195, 60%, 80%)
CMYK	cmyk(60.5%, 14.6%, 0%, 19.6%)
CIE-LAB	lab(67.14, -18.91, -23.57)
CIE-LCH	lch(67.14, 30.22, 231.26°)
OKLab	oklab(70.91% -0.0733 -0.0656)
OKLCH	oklch(70.91% 0.098 221.8)
XYZ	xyz(29.7384, 36.8141, 63.2844)
Luminance	0.3682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFCD #CD6F51

analogous

#51CDAD #51AFCD #5171CD

triadic

#51AFCD #CD51AF #AFCD51

tetradic

#51AFCD #AD51CD #CD6F51 #71CD51

square

#51AFCD #AD51CD #CD6F51 #71CD51

split-complementary

#51AFCD #CD5171 #CDAD51

monochromatic

#25697F #3291AF #51AFCD #81C5DB #B0DBE8

Accessibility & contrast

On white

2.51

#51AFCD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#51AFCD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFCD

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFCD	#FFFFFF	#000000	##000000
##51AFCD	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DABCF

Deuteranopia (green-blind)

#8B9ECD

Tritanopia (blue-blind)

#00B9B9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51afcd;
/* rgb */ color: rgb(81, 175, 205);
/* oklch */ color: oklch(70.9% 0.098 221.8);

Tailwind

colors: {
  custom: {
    50: '#8dc7dc',
    500: '#51afcd',
    950: '#000000',
  },
}

SCSS

$custom: #51afcd;
$custom-light: #8dc7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#51afcd",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 205
  },
  "hsl": {
    "h": 194.516,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.70908,
    "c": 0.09835,
    "h": 221.8
  },
  "luminance": 0.36817
}

Semantic roles & 50–950 ramp

primary

#51AFCD

secondary

#D7B0A3

accent

#6D49DF

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AFCD

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

Preview Lab → · Contrast checker → · Palette generator →