#51AFE0#51AFE0

#51AFE0 is a light, moderate cyan. Relative luminance 0.378; OKLCH L 71.7% C 0.114 H 234.2°. Best body text is #000000 at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#51AFE0
RGB	rgb(81, 175, 224)
HSL	hsl(201, 70%, 60%)
HSV	hsv(201, 64%, 88%)
CMYK	cmyk(63.8%, 21.9%, 0%, 12.2%)
CIE-LAB	lab(67.86, -13.02, -32.90)
CIE-LCH	lch(67.86, 35.38, 248.40°)
OKLab	oklab(71.73% -0.0664 -0.0922)
OKLCH	oklch(71.73% 0.114 234.2)
XYZ	xyz(32.1726, 37.7878, 76.1048)
Luminance	0.3779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFE0 #E08251

analogous

#51E0C9 #51AFE0 #5168E0

triadic

#51AFE0 #E051AF #AFE051

tetradic

#51AFE0 #C951E0 #E08251 #68E051

square

#51AFE0 #C951E0 #E08251 #68E051

split-complementary

#51AFE0 #E05168 #E0C951

monochromatic

#1C6F9B #2595CF #51AFE0 #85C7E9 #B9DFF3

Accessibility & contrast

On white

2.45

#51AFE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.56

#51AFE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFE0

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFE0	#FFFFFF	#000000	##000000
##51AFE0	1.00	2.45	8.56	8.56
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.56	21.00	1.00	1.00
##000000	8.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97ADE2

Deuteranopia (green-blind)

#849FDF

Tritanopia (blue-blind)

#00BCBF

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51afe0;
/* rgb */ color: rgb(81, 175, 224);
/* oklch */ color: oklch(71.7% 0.114 234.2);

Tailwind

colors: {
  custom: {
    50: '#8fc6ea',
    500: '#51afe0',
    950: '#000000',
  },
}

SCSS

$custom: #51afe0;
$custom-light: #8fc6ea;
$custom-dark: #000000;

JSON

{
  "hex": "#51afe0",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 224
  },
  "hsl": {
    "h": 200.559,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.71728,
    "c": 0.11364,
    "h": 234.2
  },
  "luminance": 0.37791
}

Semantic roles & 50–950 ramp

primary

#51AFE0

secondary

#E2BEAB

accent

#783BED

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51AFE0

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

Preview Lab → · Contrast checker → · Palette generator →