#57B1E4#57B1E4

#57B1E4 is a light, moderate cyan. Relative luminance 0.391; OKLCH L 72.6% C 0.113 H 236.1°. Best body text is #000000 at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#57B1E4
RGB	rgb(87, 177, 228)
HSL	hsl(202, 72%, 62%)
HSV	hsv(202, 62%, 89%)
CMYK	cmyk(61.8%, 22.4%, 0%, 10.6%)
CIE-LAB	lab(68.80, -11.80, -33.62)
CIE-LCH	lch(68.80, 35.63, 250.65°)
OKLab	oklab(72.58% -0.0633 -0.0942)
OKLCH	oklch(72.58% 0.113 236.1)
XYZ	xyz(33.6508, 39.0686, 79.1513)
Luminance	0.3907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B1E4 #E48A57

analogous

#57E4D1 #57B1E4 #576BE4

triadic

#57B1E4 #E457B1 #B1E457

tetradic

#57B1E4 #D157E4 #E48A57 #6BE457

square

#57B1E4 #D157E4 #E48A57 #6BE457

split-complementary

#57B1E4 #E4576B #E4D157

monochromatic

#1B74A6 #2398DB #57B1E4 #8CC9EC #C0E2F5

Accessibility & contrast

On white

2.38

#57B1E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.81

#57B1E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B1E4

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B1E4	#FFFFFF	#000000	##000000
##57B1E4	1.00	2.38	8.81	8.81
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.81	21.00	1.00	1.00
##000000	8.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B0E6

Deuteranopia (green-blind)

#86A2E3

Tritanopia (blue-blind)

#00BEC2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #57b1e4;
/* rgb */ color: rgb(87, 177, 228);
/* oklch */ color: oklch(72.6% 0.113 236.1);

Tailwind

colors: {
  custom: {
    50: '#93c8ec',
    500: '#57b1e4',
    950: '#000000',
  },
}

SCSS

$custom: #57b1e4;
$custom-light: #93c8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#57b1e4",
  "rgb": {
    "r": 87,
    "g": 177,
    "b": 228
  },
  "hsl": {
    "h": 201.702,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.72582,
    "c": 0.11349,
    "h": 236.1
  },
  "luminance": 0.39072
}

Semantic roles & 50–950 ramp

primary

#57B1E4

secondary

#E6C4B1

accent

#5811D4

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B1E4

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

Preview Lab → · Contrast checker → · Palette generator →