#57B3E4#57B3E4

#57B3E4 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.0% C 0.113 H 234.5°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#57B3E4
RGB	rgb(87, 179, 228)
HSL	hsl(201, 72%, 62%)
HSV	hsv(201, 62%, 89%)
CMYK	cmyk(61.8%, 21.5%, 0%, 10.6%)
CIE-LAB	lab(69.37, -12.88, -32.74)
CIE-LCH	lch(69.37, 35.18, 248.52°)
OKLab	oklab(73.04% -0.0653 -0.0917)
OKLCH	oklch(73.04% 0.113 234.5)
XYZ	xyz(34.0488, 39.8645, 79.2840)
Luminance	0.3987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B3E4 #E48857

analogous

#57E4CF #57B3E4 #576DE4

triadic

#57B3E4 #E457B3 #B3E457

tetradic

#57B3E4 #CF57E4 #E48857 #6DE457

square

#57B3E4 #CF57E4 #E48857 #6DE457

split-complementary

#57B3E4 #E4576D #E4CF57

monochromatic

#1B76A6 #239BDB #57B3E4 #8CCBEC #C0E3F5

Accessibility & contrast

On white

2.34

#57B3E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#57B3E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B3E4

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B3E4	#FFFFFF	#000000	##000000
##57B3E4	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB1E6

Deuteranopia (green-blind)

#88A3E3

Tritanopia (blue-blind)

#00C0C3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b3e4;
/* rgb */ color: rgb(87, 179, 228);
/* oklch */ color: oklch(73.0% 0.113 234.5);

Tailwind

colors: {
  custom: {
    50: '#93c9ec',
    500: '#57b3e4',
    950: '#000000',
  },
}

SCSS

$custom: #57b3e4;
$custom-light: #93c9ec;
$custom-dark: #000000;

JSON

{
  "hex": "#57b3e4",
  "rgb": {
    "r": 87,
    "g": 179,
    "b": 228
  },
  "hsl": {
    "h": 200.851,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.73037,
    "c": 0.11258,
    "h": 234.5
  },
  "luminance": 0.39868
}

Semantic roles & 50–950 ramp

primary

#57B3E4

secondary

#E6C3B1

accent

#5511D4

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B3E4

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

Preview Lab → · Contrast checker → · Palette generator →