#57AAEE#57AAEE

#57AAEE is a light, vivid cyan. Relative luminance 0.369; OKLCH L 71.5% C 0.128 H 245.7°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#57AAEE
RGB	rgb(87, 170, 238)
HSL	hsl(207, 82%, 64%)
HSV	hsv(207, 63%, 93%)
CMYK	cmyk(63.4%, 28.6%, 0%, 6.7%)
CIE-LAB	lab(67.24, -4.77, -41.53)
CIE-LCH	lch(67.24, 41.80, 263.44°)
OKLab	oklab(71.48% -0.0529 -0.1171)
OKLCH	oklch(71.48% 0.128 245.7)
XYZ	xyz(33.7321, 36.9454, 86.2258)
Luminance	0.3695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57AAEE #EE9B57

analogous

#57EEE7 #57AAEE #575EEE

triadic

#57AAEE #EE57AA #AAEE57

tetradic

#57AAEE #E757EE #EE9B57 #5EEE57

square

#57AAEE #E757EE #EE9B57 #5EEE57

split-complementary

#57AAEE #EE575E #EEE757

monochromatic

#136EB8 #1F8EE8 #57AAEE #8FC6F4 #C6E2F9

Accessibility & contrast

On white

2.50

#57AAEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#57AAEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57AAEE

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57AAEE	#FFFFFF	#000000	##000000
##57AAEE	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CACF1

Deuteranopia (green-blind)

#779DED

Tritanopia (blue-blind)

#00BAC2

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #57aaee;
/* rgb */ color: rgb(87, 170, 238);
/* oklch */ color: oklch(71.5% 0.128 245.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#57aaee",
  "rgb": {
    "r": 87,
    "g": 170,
    "b": 238
  },
  "hsl": {
    "h": 207.02,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.71482,
    "c": 0.12849,
    "h": 245.7
  },
  "luminance": 0.36949
}

Semantic roles & 50–950 ramp

primary

#57AAEE

secondary

#EBCEB6

accent

#6808DE

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57AAEE

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

Preview Lab → · Contrast checker → · Palette generator →