#51AEDB#51AEDB

#51AEDB is a light, moderate cyan. Relative luminance 0.371; OKLCH L 71.3% C 0.109 H 232.2°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#51AEDB
RGB	rgb(81, 174, 219)
HSL	hsl(200, 66%, 59%)
HSV	hsv(200, 63%, 86%)
CMYK	cmyk(63%, 20.5%, 0%, 14.1%)
CIE-LAB	lab(67.38, -14.06, -30.91)
CIE-LCH	lch(67.38, 33.96, 245.54°)
OKLab	oklab(71.27% -0.0671 -0.0865)
OKLCH	oklch(71.27% 0.109 232.2)
XYZ	xyz(31.3106, 37.1327, 72.5213)
Luminance	0.3714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AEDB #DB7E51

analogous

#51DBC3 #51AEDB #5169DB

triadic

#51AEDB #DB51AE #AEDB51

tetradic

#51AEDB #C351DB #DB7E51 #69DB51

square

#51AEDB #C351DB #DB7E51 #69DB51

split-complementary

#51AEDB #DB5169 #DBC351

monochromatic

#1E6D93 #2993C6 #51AEDB #84C6E5 #B6DDF0

Accessibility & contrast

On white

2.49

#51AEDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#51AEDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AEDB

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AEDB	#FFFFFF	#000000	##000000
##51AEDB	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ACDD

Deuteranopia (green-blind)

#859EDA

Tritanopia (blue-blind)

#00BABD

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51aedb;
/* rgb */ color: rgb(81, 174, 219);
/* oklch */ color: oklch(71.3% 0.109 232.2);

Tailwind

colors: {
  custom: {
    50: '#8fc6e6',
    500: '#51aedb',
    950: '#000000',
  },
}

SCSS

$custom: #51aedb;
$custom-light: #8fc6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51aedb",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 219
  },
  "hsl": {
    "h": 199.565,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.71274,
    "c": 0.10949,
    "h": 232.2
  },
  "luminance": 0.37136
}

Semantic roles & 50–950 ramp

primary

#51AEDB

secondary

#DFBAA9

accent

#763FE9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51AEDB

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

Preview Lab → · Contrast checker → · Palette generator →