#57B5EA#57B5EA

#57B5EA is a light, moderate cyan. Relative luminance 0.410; OKLCH L 73.8% C 0.117 H 236.1°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#57B5EA
RGB	rgb(87, 181, 234)
HSL	hsl(202, 78%, 63%)
HSV	hsv(202, 63%, 92%)
CMYK	cmyk(62.8%, 22.6%, 0%, 8.2%)
CIE-LAB	lab(70.18, -12.08, -34.75)
CIE-LCH	lch(70.18, 36.79, 250.83°)
OKLab	oklab(73.76% -0.0654 -0.0974)
OKLCH	oklch(73.76% 0.117 236.1)
XYZ	xyz(35.2999, 41.0109, 83.8815)
Luminance	0.4101 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5EA #EA8C57

analogous

#57EAD6 #57B5EA #576BEA

triadic

#57B5EA #EA57B5 #B5EA57

tetradic

#57B5EA #D657EA #EA8C57 #6BEA57

square

#57B5EA #D657EA #EA8C57 #6BEA57

split-complementary

#57B5EA #EA576B #EAD657

monochromatic

#1679B1 #219DE3 #57B5EA #8DCDF1 #C4E5F8

Accessibility & contrast

On white

2.28

#57B5EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.20

#57B5EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5EA

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5EA	#FFFFFF	#000000	##000000
##57B5EA	1.00	2.28	9.20	9.20
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.20	21.00	1.00	1.00
##000000	9.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4ED

Deuteranopia (green-blind)

#88A5E9

Tritanopia (blue-blind)

#00C3C7

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #57b5ea;
/* rgb */ color: rgb(87, 181, 234);
/* oklch */ color: oklch(73.8% 0.117 236.1);

Tailwind

colors: {
  custom: {
    50: '#94cbf1',
    500: '#57b5ea',
    950: '#000000',
  },
}

SCSS

$custom: #57b5ea;
$custom-light: #94cbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5ea",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 234
  },
  "hsl": {
    "h": 201.633,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.7376,
    "c": 0.11735,
    "h": 236.1
  },
  "luminance": 0.41014
}

Semantic roles & 50–950 ramp

primary

#57B5EA

secondary

#E9C7B4

accent

#560BDA

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5EA

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

Preview Lab → · Contrast checker → · Palette generator →