#57B7EB#57B7EB

#57B7EB is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.3% C 0.117 H 235.1°. Best body text is #000000 at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#57B7EB
RGB	rgb(87, 183, 235)
HSL	hsl(201, 79%, 63%)
HSV	hsv(201, 63%, 92%)
CMYK	cmyk(63%, 22.1%, 0%, 7.8%)
CIE-LAB	lab(70.79, -12.84, -34.35)
CIE-LCH	lch(70.79, 36.67, 249.51°)
OKLab	oklab(74.26% -0.0671 -0.0963)
OKLCH	oklch(74.26% 0.117 235.1)
XYZ	xyz(35.8536, 41.8877, 84.7768)
Luminance	0.4189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B7EB #EB8B57

analogous

#57EBD5 #57B7EB #576DEB

triadic

#57B7EB #EB57B7 #B7EB57

tetradic

#57B7EB #D557EB #EB8B57 #6DEB57

square

#57B7EB #D557EB #EB8B57 #6DEB57

split-complementary

#57B7EB #EB576D #EBD557

monochromatic

#157BB2 #20A0E4 #57B7EB #8ECEF2 #C4E6F8

Accessibility & contrast

On white

2.24

#57B7EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.38

#57B7EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B7EB

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B7EB	#FFFFFF	#000000	##000000
##57B7EB	1.00	2.24	9.38	9.38
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.38	21.00	1.00	1.00
##000000	9.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB6ED

Deuteranopia (green-blind)

#8AA7EA

Tritanopia (blue-blind)

#00C5C8

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #57b7eb;
/* rgb */ color: rgb(87, 183, 235);
/* oklch */ color: oklch(74.3% 0.117 235.1);

Tailwind

colors: {
  custom: {
    50: '#94ccf1',
    500: '#57b7eb',
    950: '#000000',
  },
}

SCSS

$custom: #57b7eb;
$custom-light: #94ccf1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b7eb",
  "rgb": {
    "r": 87,
    "g": 183,
    "b": 235
  },
  "hsl": {
    "h": 201.081,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.74258,
    "c": 0.11736,
    "h": 235.1
  },
  "luminance": 0.41891
}

Semantic roles & 50–950 ramp

primary

#57B7EB

secondary

#E9C7B4

accent

#540ADB

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B7EB

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

Preview Lab → · Contrast checker → · Palette generator →