#57BFEB#57BFEB

#57BFEB is a light, moderate cyan. Relative luminance 0.453; OKLCH L 76.1% C 0.114 H 228.8°. Best body text is #000000 at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#57BFEB
RGB	rgb(87, 191, 235)
HSL	hsl(198, 79%, 63%)
HSV	hsv(198, 63%, 92%)
CMYK	cmyk(63%, 18.7%, 0%, 7.8%)
CIE-LAB	lab(73.08, -17.07, -30.82)
CIE-LCH	lch(73.08, 35.23, 241.02°)
OKLab	oklab(76.08% -0.0753 -0.0861)
OKLCH	oklch(76.08% 0.114 228.8)
XYZ	xyz(37.5508, 45.2821, 85.3425)
Luminance	0.4529 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BFEB #EB8357

analogous

#57EBCD #57BFEB #5775EB

triadic

#57BFEB #EB57BF #BFEB57

tetradic

#57BFEB #CD57EB #EB8357 #75EB57

square

#57BFEB #CD57EB #EB8357 #75EB57

split-complementary

#57BFEB #EB5775 #EBCD57

monochromatic

#1584B2 #20AAE4 #57BFEB #8ED4F2 #C4E9F8

Accessibility & contrast

On white

2.09

#57BFEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.06

#57BFEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BFEB

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BFEB	#FFFFFF	#000000	##000000
##57BFEB	1.00	2.09	10.06	10.06
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.06	21.00	1.00	1.00
##000000	10.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8BCED

Deuteranopia (green-blind)

#94ADEA

Tritanopia (blue-blind)

#00CBCD

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #57bfeb;
/* rgb */ color: rgb(87, 191, 235);
/* oklch */ color: oklch(76.1% 0.114 228.8);

Tailwind

colors: {
  custom: {
    50: '#94d2f1',
    500: '#57bfeb',
    950: '#000000',
  },
}

SCSS

$custom: #57bfeb;
$custom-light: #94d2f1;
$custom-dark: #000000;

JSON

{
  "hex": "#57bfeb",
  "rgb": {
    "r": 87,
    "g": 191,
    "b": 235
  },
  "hsl": {
    "h": 197.838,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.76076,
    "c": 0.1144,
    "h": 228.8
  },
  "luminance": 0.45286
}

Semantic roles & 50–950 ramp

primary

#57BFEB

secondary

#E9C4B4

accent

#480ADB

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #57BFEB

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

Preview Lab → · Contrast checker → · Palette generator →