#57B9DD#57B9DD

#57B9DD is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.1% C 0.105 H 225.1°. Best body text is #000000 at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#57B9DD
RGB	rgb(87, 185, 221)
HSL	hsl(196, 66%, 60%)
HSV	hsv(196, 61%, 87%)
CMYK	cmyk(60.6%, 16.3%, 0%, 13.3%)
CIE-LAB	lab(70.83, -18.20, -26.67)
CIE-LCH	lch(70.83, 32.29, 235.68°)
OKLab	oklab(74.11% -0.0741 -0.0743)
OKLCH	oklch(74.11% 0.105 225.1)
XYZ	xyz(34.3254, 41.9412, 74.6791)
Luminance	0.4194 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B9DD #DD7B57

analogous

#57DDBE #57B9DD #5776DD

triadic

#57B9DD #DD57B9 #B9DD57

tetradic

#57B9DD #BE57DD #DD7B57 #76DD57

square

#57B9DD #BE57DD #DD7B57 #76DD57

split-complementary

#57B9DD #DD5776 #DDBE57

monochromatic

#1F799A #2AA1CD #57B9DD #8ACEE7 #BDE3F2

Accessibility & contrast

On white

2.24

#57B9DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.39

#57B9DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B9DD

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B9DD	#FFFFFF	#000000	##000000
##57B9DD	1.00	2.24	9.39	9.39
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.39	21.00	1.00	1.00
##000000	9.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B5DF

Deuteranopia (green-blind)

#92A7DD

Tritanopia (blue-blind)

#00C4C5

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #57b9dd;
/* rgb */ color: rgb(87, 185, 221);
/* oklch */ color: oklch(74.1% 0.105 225.1);

Tailwind

colors: {
  custom: {
    50: '#92cee7',
    500: '#57b9dd',
    950: '#000000',
  },
}

SCSS

$custom: #57b9dd;
$custom-light: #92cee7;
$custom-dark: #000000;

JSON

{
  "hex": "#57b9dd",
  "rgb": {
    "r": 87,
    "g": 185,
    "b": 221
  },
  "hsl": {
    "h": 196.119,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.7411,
    "c": 0.10496,
    "h": 225.1
  },
  "luminance": 0.41945
}

Semantic roles & 50–950 ramp

primary

#57B9DD

secondary

#E1BCAE

accent

#4817CE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B9DD

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

Preview Lab → · Contrast checker → · Palette generator →