#57BBE4#57BBE4

#57BBE4 is a light, moderate cyan. Relative luminance 0.432; OKLCH L 74.9% C 0.110 H 227.9°. Best body text is #000000 at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#57BBE4
RGB	rgb(87, 187, 228)
HSL	hsl(197, 72%, 62%)
HSV	hsv(197, 62%, 89%)
CMYK	cmyk(61.8%, 18%, 0%, 10.6%)
CIE-LAB	lab(71.67, -17.12, -29.20)
CIE-LCH	lch(71.67, 33.85, 239.61°)
OKLab	oklab(74.86% -0.0737 -0.0815)
OKLCH	oklch(74.86% 0.11 227.9)
XYZ	xyz(35.6989, 43.1647, 79.8340)
Luminance	0.4317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BBE4 #E48057

analogous

#57E4C7 #57BBE4 #5775E4

triadic

#57BBE4 #E457BB #BBE457

tetradic

#57BBE4 #C757E4 #E48057 #75E457

square

#57BBE4 #C757E4 #E48057 #75E457

split-complementary

#57BBE4 #E45775 #E4C757

monochromatic

#1B7DA6 #23A5DB #57BBE4 #8CD0EC #C0E6F5

Accessibility & contrast

On white

2.18

#57BBE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.63

#57BBE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BBE4

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BBE4	#FFFFFF	#000000	##000000
##57BBE4	1.00	2.18	9.63	9.63
#FFFFFF	2.18	1.00	21.00	21.00
#000000	9.63	21.00	1.00	1.00
##000000	9.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B8E6

Deuteranopia (green-blind)

#92A9E3

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #57bbe4;
/* rgb */ color: rgb(87, 187, 228);
/* oklch */ color: oklch(74.9% 0.110 227.9);

Tailwind

colors: {
  custom: {
    50: '#93cfec',
    500: '#57bbe4',
    950: '#000000',
  },
}

SCSS

$custom: #57bbe4;
$custom-light: #93cfec;
$custom-dark: #000000;

JSON

{
  "hex": "#57bbe4",
  "rgb": {
    "r": 87,
    "g": 187,
    "b": 228
  },
  "hsl": {
    "h": 197.447,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.74863,
    "c": 0.10986,
    "h": 227.9
  },
  "luminance": 0.43168
}

Semantic roles & 50–950 ramp

primary

#57BBE4

secondary

#E6C0B1

accent

#4A11D4

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57BBE4

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

Preview Lab → · Contrast checker → · Palette generator →