#51AFCF#51AFCF

#51AFCF is a light, moderate cyan. Relative luminance 0.369; OKLCH L 71.0% C 0.100 H 223.3°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#51AFCF
RGB	rgb(81, 175, 207)
HSL	hsl(195, 57%, 56%)
HSV	hsv(195, 61%, 81%)
CMYK	cmyk(60.9%, 15.5%, 0%, 18.8%)
CIE-LAB	lab(67.21, -18.30, -24.56)
CIE-LCH	lch(67.21, 30.63, 233.30°)
OKLab	oklab(70.99% -0.0725 -0.0684)
OKLCH	oklch(70.99% 0.1 223.3)
XYZ	xyz(29.9813, 36.9113, 64.5639)
Luminance	0.3691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFCF #CF7151

analogous

#51CFB0 #51AFCF #5170CF

triadic

#51AFCF #CF51AF #AFCF51

tetradic

#51AFCF #B051CF #CF7151 #70CF51

square

#51AFCF #B051CF #CF7151 #70CF51

split-complementary

#51AFCF #CF5170 #CFB051

monochromatic

#246A82 #3191B2 #51AFCF #81C5DC #B1DBE9

Accessibility & contrast

On white

2.51

#51AFCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.38

#51AFCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFCF

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFCF	#FFFFFF	#000000	##000000
##51AFCF	1.00	2.51	8.38	8.38
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.38	21.00	1.00	1.00
##000000	8.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DABD1

Deuteranopia (green-blind)

#8B9ECF

Tritanopia (blue-blind)

#00B9B9

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51afcf;
/* rgb */ color: rgb(81, 175, 207);
/* oklch */ color: oklch(71.0% 0.100 223.3);

Tailwind

colors: {
  custom: {
    50: '#8ec7dd',
    500: '#51afcf',
    950: '#000000',
  },
}

SCSS

$custom: #51afcf;
$custom-light: #8ec7dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51afcf",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 207
  },
  "hsl": {
    "h": 195.238,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.70991,
    "c": 0.09969,
    "h": 223.3
  },
  "luminance": 0.36914
}

Semantic roles & 50–950 ramp

primary

#51AFCF

secondary

#D8B1A4

accent

#6E48E0

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AFCF

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

Preview Lab → · Contrast checker → · Palette generator →