#57B9EA#57B9EA

#57B9EA is a light, moderate cyan. Relative luminance 0.427; OKLCH L 74.7% C 0.116 H 233.0°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#57B9EA
RGB	rgb(87, 185, 234)
HSL	hsl(200, 78%, 63%)
HSV	hsv(200, 63%, 92%)
CMYK	cmyk(62.8%, 20.9%, 0%, 8.2%)
CIE-LAB	lab(71.32, -14.22, -32.98)
CIE-LCH	lch(71.32, 35.92, 246.68°)
OKLab	oklab(74.67% -0.0695 -0.0924)
OKLCH	oklch(74.67% 0.116 233)
XYZ	xyz(36.1250, 42.6610, 84.1565)
Luminance	0.4266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B9EA #EA8857

analogous

#57EAD1 #57B9EA #576FEA

triadic

#57B9EA #EA57B9 #B9EA57

tetradic

#57B9EA #D157EA #EA8857 #6FEA57

square

#57B9EA #D157EA #EA8857 #6FEA57

split-complementary

#57B9EA #EA576F #EAD157

monochromatic

#167DB1 #21A2E3 #57B9EA #8DD0F1 #C4E6F8

Accessibility & contrast

On white

2.20

#57B9EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#57B9EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B9EA

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B9EA	#FFFFFF	#000000	##000000
##57B9EA	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B7EC

Deuteranopia (green-blind)

#8DA8E9

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #57b9ea;
/* rgb */ color: rgb(87, 185, 234);
/* oklch */ color: oklch(74.7% 0.116 233.0);

Tailwind

colors: {
  custom: {
    50: '#94cef1',
    500: '#57b9ea',
    950: '#000000',
  },
}

SCSS

$custom: #57b9ea;
$custom-light: #94cef1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b9ea",
  "rgb": {
    "r": 87,
    "g": 185,
    "b": 234
  },
  "hsl": {
    "h": 200,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.74667,
    "c": 0.11558,
    "h": 233
  },
  "luminance": 0.42665
}

Semantic roles & 50–950 ramp

primary

#57B9EA

secondary

#E9C6B4

accent

#500BDA

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B9EA

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

Preview Lab → · Contrast checker → · Palette generator →