#57AAEF#57AAEF

#57AAEF is a light, vivid cyan. Relative luminance 0.370; OKLCH L 71.5% C 0.130 H 246.1°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#57AAEF
RGB	rgb(87, 170, 239)
HSL	hsl(207, 83%, 64%)
HSV	hsv(207, 64%, 94%)
CMYK	cmyk(63.6%, 28.9%, 0%, 6.3%)
CIE-LAB	lab(67.28, -4.45, -42.00)
CIE-LCH	lch(67.28, 42.24, 263.95°)
OKLab	oklab(71.53% -0.0526 -0.1185)
OKLCH	oklch(71.53% 0.13 246.1)
XYZ	xyz(33.8794, 37.0043, 87.0017)
Luminance	0.3701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57AAEF #EF9C57

analogous

#57EFE8 #57AAEF #575EEF

triadic

#57AAEF #EF57AA #AAEF57

tetradic

#57AAEF #E857EF #EF9C57 #5EEF57

square

#57AAEF #E857EF #EF9C57 #5EEF57

split-complementary

#57AAEF #EF575E #EFE857

monochromatic

#126EBA #1F8EEA #57AAEF #8FC6F4 #C7E3FA

Accessibility & contrast

On white

2.50

#57AAEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#57AAEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57AAEF

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57AAEF	#FFFFFF	#000000	##000000
##57AAEF	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CACF2

Deuteranopia (green-blind)

#779DEE

Tritanopia (blue-blind)

#00BBC2

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #57aaef;
/* rgb */ color: rgb(87, 170, 239);
/* oklch */ color: oklch(71.5% 0.130 246.1);

Tailwind

colors: {
  custom: {
    50: '#94c3f4',
    500: '#57aaef',
    950: '#000000',
  },
}

SCSS

$custom: #57aaef;
$custom-light: #94c3f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57aaef",
  "rgb": {
    "r": 87,
    "g": 170,
    "b": 239
  },
  "hsl": {
    "h": 207.237,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.71532,
    "c": 0.12963,
    "h": 246.1
  },
  "luminance": 0.37008
}

Semantic roles & 50–950 ramp

primary

#57AAEF

secondary

#ECCEB6

accent

#6906DF

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57AAEF

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

Preview Lab → · Contrast checker → · Palette generator →