#57B4DD#57B4DD

#57B4DD is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.0% C 0.106 H 229.5°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#57B4DD
RGB	rgb(87, 180, 221)
HSL	hsl(198, 66%, 60%)
HSV	hsv(198, 61%, 87%)
CMYK	cmyk(60.6%, 18.6%, 0%, 13.3%)
CIE-LAB	lab(69.39, -15.58, -28.89)
CIE-LCH	lch(69.39, 32.82, 241.66°)
OKLab	oklab(72.96% -0.0688 -0.0806)
OKLCH	oklch(72.96% 0.106 229.5)
XYZ	xyz(33.2978, 39.8859, 74.3365)
Luminance	0.3989 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B4DD #DD8057

analogous

#57DDC3 #57B4DD #5771DD

triadic

#57B4DD #DD57B4 #B4DD57

tetradic

#57B4DD #C357DD #DD8057 #71DD57

square

#57B4DD #C357DD #DD8057 #71DD57

split-complementary

#57B4DD #DD5771 #DDC357

monochromatic

#1F759A #2A9BCD #57B4DD #8ACBE7 #BDE1F2

Accessibility & contrast

On white

2.34

#57B4DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#57B4DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B4DD

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B4DD	#FFFFFF	#000000	##000000
##57B4DD	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB1DF

Deuteranopia (green-blind)

#8CA3DC

Tritanopia (blue-blind)

#00C0C1

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b4dd;
/* rgb */ color: rgb(87, 180, 221);
/* oklch */ color: oklch(73.0% 0.106 229.5);

Tailwind

colors: {
  custom: {
    50: '#92cae7',
    500: '#57b4dd',
    950: '#000000',
  },
}

SCSS

$custom: #57b4dd;
$custom-light: #92cae7;
$custom-dark: #000000;

JSON

{
  "hex": "#57b4dd",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 221
  },
  "hsl": {
    "h": 198.358,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72959,
    "c": 0.10604,
    "h": 229.5
  },
  "luminance": 0.39889
}

Semantic roles & 50–950 ramp

primary

#57B4DD

secondary

#E1BEAE

accent

#4F17CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B4DD

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

Preview Lab → · Contrast checker → · Palette generator →