#51AFDF#51AFDF

#51AFDF is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.7% C 0.113 H 233.7°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#51AFDF
RGB	rgb(81, 175, 223)
HSL	hsl(200, 69%, 60%)
HSV	hsv(200, 64%, 87%)
CMYK	cmyk(63.7%, 21.5%, 0%, 12.5%)
CIE-LAB	lab(67.82, -13.34, -32.41)
CIE-LCH	lch(67.82, 35.05, 247.63°)
OKLab	oklab(71.68% -0.0667 -0.0908)
OKLCH	oklch(71.68% 0.113 233.7)
XYZ	xyz(32.0374, 37.7337, 75.3927)
Luminance	0.3774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFDF #DF8151

analogous

#51DFC8 #51AFDF #5168DF

triadic

#51AFDF #DF51AF #AFDF51

tetradic

#51AFDF #C851DF #DF8151 #68DF51

square

#51AFDF #C851DF #DF8151 #68DF51

split-complementary

#51AFDF #DF5168 #DFC851

monochromatic

#1C6F99 #2695CD #51AFDF #85C7E9 #B8DFF2

Accessibility & contrast

On white

2.46

#51AFDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#51AFDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFDF

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFDF	#FFFFFF	#000000	##000000
##51AFDF	1.00	2.46	8.55	8.55
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.55	21.00	1.00	1.00
##000000	8.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ADE1

Deuteranopia (green-blind)

#849FDE

Tritanopia (blue-blind)

#00BCBF

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51afdf;
/* rgb */ color: rgb(81, 175, 223);
/* oklch */ color: oklch(71.7% 0.113 233.7);

Tailwind

colors: {
  custom: {
    50: '#8fc6e9',
    500: '#51afdf',
    950: '#000000',
  },
}

SCSS

$custom: #51afdf;
$custom-light: #8fc6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51afdf",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 223
  },
  "hsl": {
    "h": 200.282,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.71683,
    "c": 0.11271,
    "h": 233.7
  },
  "luminance": 0.37737
}

Semantic roles & 50–950 ramp

primary

#51AFDF

secondary

#E1BDAA

accent

#773CEC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51AFDF

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

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