#51AEDA#51AEDA

#51AEDA is a light, moderate cyan. Relative luminance 0.371; OKLCH L 71.2% C 0.109 H 231.6°. Best body text is #000000 at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#51AEDA
RGB	rgb(81, 174, 218)
HSL	hsl(199, 65%, 59%)
HSV	hsv(199, 63%, 85%)
CMYK	cmyk(62.8%, 20.2%, 0%, 14.5%)
CIE-LAB	lab(67.34, -14.38, -30.42)
CIE-LCH	lch(67.34, 33.65, 244.71°)
OKLab	oklab(71.23% -0.0675 -0.0851)
OKLCH	oklch(71.23% 0.109 231.6)
XYZ	xyz(31.1794, 37.0802, 71.8301)
Luminance	0.3708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AEDA #DA7D51

analogous

#51DAC1 #51AEDA #5169DA

triadic

#51AEDA #DA51AE #AEDA51

tetradic

#51AEDA #C151DA #DA7D51 #69DA51

square

#51AEDA #C151DA #DA7D51 #69DA51

split-complementary

#51AEDA #DA5169 #DAC151

monochromatic

#1F6D92 #2A93C4 #51AEDA #83C5E5 #B6DDEF

Accessibility & contrast

On white

2.50

#51AEDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.42

#51AEDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AEDA

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AEDA	#FFFFFF	#000000	##000000
##51AEDA	1.00	2.50	8.42	8.42
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.42	21.00	1.00	1.00
##000000	8.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ACDC

Deuteranopia (green-blind)

#859ED9

Tritanopia (blue-blind)

#00BABD

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51aeda;
/* rgb */ color: rgb(81, 174, 218);
/* oklch */ color: oklch(71.2% 0.109 231.6);

Tailwind

colors: {
  custom: {
    50: '#8fc6e5',
    500: '#51aeda',
    950: '#000000',
  },
}

SCSS

$custom: #51aeda;
$custom-light: #8fc6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51aeda",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 218
  },
  "hsl": {
    "h": 199.27,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.7123,
    "c": 0.1086,
    "h": 231.6
  },
  "luminance": 0.37083
}

Semantic roles & 50–950 ramp

primary

#51AEDA

secondary

#DEBAA8

accent

#7640E8

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1315

muted

#7E8284

Preview Lab

Preview with #51AEDA

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

Preview Lab → · Contrast checker → · Palette generator →