#57B8EC#57B8EC

#57B8EC is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.5% C 0.118 H 234.9°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#57B8EC
RGB	rgb(87, 184, 236)
HSL	hsl(201, 80%, 63%)
HSV	hsv(201, 63%, 93%)
CMYK	cmyk(63.1%, 22%, 0%, 7.5%)
CIE-LAB	lab(71.12, -13.06, -34.39)
CIE-LCH	lch(71.12, 36.79, 249.21°)
OKLab	oklab(74.53% -0.0678 -0.0964)
OKLCH	oklch(74.53% 0.118 234.9)
XYZ	xyz(36.2054, 42.3597, 85.6088)
Luminance	0.4236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B8EC #EC8B57

analogous

#57ECD6 #57B8EC #576DEC

triadic

#57B8EC #EC57B8 #B8EC57

tetradic

#57B8EC #D657EC #EC8B57 #6DEC57

square

#57B8EC #D657EC #EC8B57 #6DEC57

split-complementary

#57B8EC #EC576D #ECD657

monochromatic

#147CB4 #20A1E6 #57B8EC #8ECFF2 #C5E6F8

Accessibility & contrast

On white

2.22

#57B8EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#57B8EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B8EC

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B8EC	#FFFFFF	#000000	##000000
##57B8EC	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB7EE

Deuteranopia (green-blind)

#8BA7EB

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #57b8ec;
/* rgb */ color: rgb(87, 184, 236);
/* oklch */ color: oklch(74.5% 0.118 234.9);

Tailwind

colors: {
  custom: {
    50: '#94cdf2',
    500: '#57b8ec',
    950: '#000000',
  },
}

SCSS

$custom: #57b8ec;
$custom-light: #94cdf2;
$custom-dark: #000000;

JSON

{
  "hex": "#57b8ec",
  "rgb": {
    "r": 87,
    "g": 184,
    "b": 236
  },
  "hsl": {
    "h": 200.94,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.74529,
    "c": 0.11784,
    "h": 234.9
  },
  "luminance": 0.42363
}

Semantic roles & 50–950 ramp

primary

#57B8EC

secondary

#EAC7B5

accent

#530ADC

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #57B8EC

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

Preview Lab → · Contrast checker → · Palette generator →