#57B0E8#57B0E8

#57B0E8 is a light, moderate cyan. Relative luminance 0.389; OKLCH L 72.5% C 0.118 H 238.9°. Best body text is #000000 at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#57B0E8
RGB	rgb(87, 176, 232)
HSL	hsl(203, 76%, 63%)
HSV	hsv(203, 63%, 91%)
CMYK	cmyk(62.5%, 24.1%, 0%, 9%)
CIE-LAB	lab(68.68, -10.00, -36.00)
CIE-LCH	lch(68.68, 37.36, 254.47°)
OKLab	oklab(72.54% -0.0609 -0.1011)
OKLCH	oklch(72.54% 0.118 238.9)
XYZ	xyz(34.0158, 38.8997, 82.0440)
Luminance	0.3890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B0E8 #E88F57

analogous

#57E8D7 #57B0E8 #5768E8

triadic

#57B0E8 #E857B0 #B0E857

tetradic

#57B0E8 #D757E8 #E88F57 #68E857

square

#57B0E8 #D757E8 #E88F57 #68E857

split-complementary

#57B0E8 #E85768 #E8D757

monochromatic

#1873AD #2197E1 #57B0E8 #8DC9EF #C3E3F7

Accessibility & contrast

On white

2.39

#57B0E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.78

#57B0E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0E8

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B0E8	#FFFFFF	#000000	##000000
##57B0E8	1.00	2.39	8.78	8.78
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.78	21.00	1.00	1.00
##000000	8.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B0EB

Deuteranopia (green-blind)

#82A1E7

Tritanopia (blue-blind)

#00BEC3

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #57b0e8;
/* rgb */ color: rgb(87, 176, 232);
/* oklch */ color: oklch(72.5% 0.118 238.9);

Tailwind

colors: {
  custom: {
    50: '#93c7ef',
    500: '#57b0e8',
    950: '#000000',
  },
}

SCSS

$custom: #57b0e8;
$custom-light: #93c7ef;
$custom-dark: #000000;

JSON

{
  "hex": "#57b0e8",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 232
  },
  "hsl": {
    "h": 203.172,
    "s": 75.916,
    "l": 62.549
  },
  "oklch": {
    "l": 0.72539,
    "c": 0.118,
    "h": 238.9
  },
  "luminance": 0.38903
}

Semantic roles & 50–950 ramp

primary

#57B0E8

secondary

#E8C7B3

accent

#5C0DD8

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B0E8

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

Preview Lab → · Contrast checker → · Palette generator →