#57B5E8#57B5E8

#57B5E8 is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.7% C 0.115 H 235.1°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#57B5E8
RGB	rgb(87, 181, 232)
HSL	hsl(201, 76%, 63%)
HSV	hsv(201, 63%, 91%)
CMYK	cmyk(62.5%, 22%, 0%, 9%)
CIE-LAB	lab(70.10, -12.70, -33.79)
CIE-LCH	lch(70.10, 36.10, 249.39°)
OKLab	oklab(73.67% -0.0661 -0.0947)
OKLCH	oklch(73.67% 0.115 235.1)
XYZ	xyz(35.0142, 40.8966, 82.3769)
Luminance	0.4090 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5E8 #E88A57

analogous

#57E8D2 #57B5E8 #576DE8

triadic

#57B5E8 #E857B5 #B5E857

tetradic

#57B5E8 #D257E8 #E88A57 #6DE857

square

#57B5E8 #D257E8 #E88A57 #6DE857

split-complementary

#57B5E8 #E8576D #E8D257

monochromatic

#1878AD #219DE1 #57B5E8 #8DCDEF #C3E4F7

Accessibility & contrast

On white

2.29

#57B5E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.18

#57B5E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5E8

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5E8	#FFFFFF	#000000	##000000
##57B5E8	1.00	2.29	9.18	9.18
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.18	21.00	1.00	1.00
##000000	9.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB4EA

Deuteranopia (green-blind)

#89A5E7

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b5e8;
/* rgb */ color: rgb(87, 181, 232);
/* oklch */ color: oklch(73.7% 0.115 235.1);

Tailwind

colors: {
  custom: {
    50: '#93cbef',
    500: '#57b5e8',
    950: '#000000',
  },
}

SCSS

$custom: #57b5e8;
$custom-light: #93cbef;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5e8",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 232
  },
  "hsl": {
    "h": 201.103,
    "s": 75.916,
    "l": 62.549
  },
  "oklch": {
    "l": 0.7367,
    "c": 0.11545,
    "h": 235.1
  },
  "luminance": 0.409
}

Semantic roles & 50–950 ramp

primary

#57B5E8

secondary

#E8C6B3

accent

#550DD8

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5E8

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

Preview Lab → · Contrast checker → · Palette generator →