#57B0FF#57B0FF

#57B0FF is a light, vivid cyan. Relative luminance 0.403; OKLCH L 73.7% C 0.143 H 247.9°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#57B0FF
RGB	rgb(87, 176, 255)
HSL	hsl(208, 100%, 67%)
HSV	hsv(208, 66%, 100%)
CMYK	cmyk(65.9%, 31%, 0%, 0%)
CIE-LAB	lab(69.68, -2.58, -46.94)
CIE-LCH	lch(69.68, 47.01, 266.85°)
OKLab	oklab(73.66% -0.0539 -0.1328)
OKLCH	oklch(73.66% 0.143 247.9)
XYZ	xyz(37.4991, 40.2930, 100.3894)
Luminance	0.4030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B0FF #FFA657

analogous

#57FFFA #57B0FF #575CFF

triadic

#57B0FF #FF57B0 #B0FF57

tetradic

#57B0FF #FA57FF #FFA657 #5CFF57

square

#57B0FF #FA57FF #FFA657 #5CFF57

split-complementary

#57B0FF #FF575C #FFFA57

monochromatic

#0074DC #1A93FF #57B0FF #94CDFF #D1EAFF

Accessibility & contrast

On white

2.32

#57B0FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#57B0FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0FF

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B0FF	#FFFFFF	#000000	##000000
##57B0FF	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DB3FF

Deuteranopia (green-blind)

#76A3FD

Tritanopia (blue-blind)

#00C3CC

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #57b0ff;
/* rgb */ color: rgb(87, 176, 255);
/* oklch */ color: oklch(73.7% 0.143 247.9);

Tailwind

colors: {
  custom: {
    50: '#96c7ff',
    500: '#57b0ff',
    950: '#000000',
  },
}

SCSS

$custom: #57b0ff;
$custom-light: #96c7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#57b0ff",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 255
  },
  "hsl": {
    "h": 208.214,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73657,
    "c": 0.14331,
    "h": 247.9
  },
  "luminance": 0.40297
}

Semantic roles & 50–950 ramp

primary

#57B0FF

secondary

#F4D7BE

accent

#6C00E6

background

#FAFCFF

surface

#F3F8FF

border

#CDD1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #57B0FF

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

Preview Lab → · Contrast checker → · Palette generator →