#57B4EA#57B4EA

#57B4EA is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.5% C 0.118 H 236.9°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#57B4EA
RGB	rgb(87, 180, 234)
HSL	hsl(202, 78%, 63%)
HSV	hsv(202, 63%, 92%)
CMYK	cmyk(62.8%, 23.1%, 0%, 8.2%)
CIE-LAB	lab(69.90, -11.54, -35.19)
CIE-LCH	lch(69.90, 37.04, 251.85°)
OKLab	oklab(73.53% -0.0644 -0.0987)
OKLCH	oklch(73.53% 0.118 236.9)
XYZ	xyz(35.0973, 40.6057, 83.8140)
Luminance	0.4061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B4EA #EA8D57

analogous

#57EAD7 #57B4EA #576AEA

triadic

#57B4EA #EA57B4 #B4EA57

tetradic

#57B4EA #D757EA #EA8D57 #6AEA57

square

#57B4EA #D757EA #EA8D57 #6AEA57

split-complementary

#57B4EA #EA576A #EAD757

monochromatic

#1678B1 #219CE3 #57B4EA #8DCCF1 #C4E5F8

Accessibility & contrast

On white

2.30

#57B4EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#57B4EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B4EA

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B4EA	#FFFFFF	#000000	##000000
##57B4EA	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB3ED

Deuteranopia (green-blind)

#86A4E9

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b4ea;
/* rgb */ color: rgb(87, 180, 234);
/* oklch */ color: oklch(73.5% 0.118 236.9);

Tailwind

colors: {
  custom: {
    50: '#94caf1',
    500: '#57b4ea',
    950: '#000000',
  },
}

SCSS

$custom: #57b4ea;
$custom-light: #94caf1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b4ea",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 234
  },
  "hsl": {
    "h": 202.041,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.73534,
    "c": 0.11786,
    "h": 236.9
  },
  "luminance": 0.40609
}

Semantic roles & 50–950 ramp

primary

#57B4EA

secondary

#E9C7B4

accent

#570BDA

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B4EA

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

Preview Lab → · Contrast checker → · Palette generator →