#57ACEF#57ACEF

#57ACEF is a light, vivid cyan. Relative luminance 0.378; OKLCH L 72.0% C 0.128 H 244.8°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#57ACEF
RGB	rgb(87, 172, 239)
HSL	hsl(206, 83%, 64%)
HSV	hsv(206, 64%, 94%)
CMYK	cmyk(63.6%, 28%, 0%, 6.3%)
CIE-LAB	lab(67.84, -5.56, -41.12)
CIE-LCH	lch(67.84, 41.50, 262.29°)
OKLab	oklab(71.98% -0.0546 -0.1159)
OKLCH	oklch(71.98% 0.128 244.8)
XYZ	xyz(34.2571, 37.7598, 87.1276)
Luminance	0.3776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57ACEF #EF9A57

analogous

#57EFE6 #57ACEF #5760EF

triadic

#57ACEF #EF57AC #ACEF57

tetradic

#57ACEF #E657EF #EF9A57 #60EF57

square

#57ACEF #E657EF #EF9A57 #60EF57

split-complementary

#57ACEF #EF5760 #EFE657

monochromatic

#1270BA #1F90EA #57ACEF #8FC8F4 #C7E3FA

Accessibility & contrast

On white

2.46

#57ACEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#57ACEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57ACEF

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57ACEF	#FFFFFF	#000000	##000000
##57ACEF	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)

#8EAEF2

Deuteranopia (green-blind)

#7A9FEE

Tritanopia (blue-blind)

#00BCC3

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #57acef;
/* rgb */ color: rgb(87, 172, 239);
/* oklch */ color: oklch(72.0% 0.128 244.8);

Tailwind

colors: {
  custom: {
    50: '#94c4f4',
    500: '#57acef',
    950: '#000000',
  },
}

SCSS

$custom: #57acef;
$custom-light: #94c4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57acef",
  "rgb": {
    "r": 87,
    "g": 172,
    "b": 239
  },
  "hsl": {
    "h": 206.447,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.71976,
    "c": 0.12813,
    "h": 244.8
  },
  "luminance": 0.37763
}

Semantic roles & 50–950 ramp

primary

#57ACEF

secondary

#ECCEB6

accent

#6606DF

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57ACEF

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

Preview Lab → · Contrast checker → · Palette generator →