#57B8EA#57B8EA

#57B8EA is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.4% C 0.116 H 233.8°. Best body text is #000000 at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#57B8EA
RGB	rgb(87, 184, 234)
HSL	hsl(200, 78%, 63%)
HSV	hsv(200, 63%, 92%)
CMYK	cmyk(62.8%, 21.4%, 0%, 8.2%)
CIE-LAB	lab(71.04, -13.68, -33.43)
CIE-LCH	lch(71.04, 36.12, 247.74°)
OKLab	oklab(74.44% -0.0685 -0.0936)
OKLCH	oklch(74.44% 0.116 233.8)
XYZ	xyz(35.9165, 42.2441, 84.0870)
Luminance	0.4225 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B8EA #EA8957

analogous

#57EAD2 #57B8EA #576EEA

triadic

#57B8EA #EA57B8 #B8EA57

tetradic

#57B8EA #D257EA #EA8957 #6EEA57

square

#57B8EA #D257EA #EA8957 #6EEA57

split-complementary

#57B8EA #EA576E #EAD257

monochromatic

#167CB1 #21A1E3 #57B8EA #8DCFF1 #C4E6F8

Accessibility & contrast

On white

2.22

#57B8EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.45

#57B8EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B8EA

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B8EA	#FFFFFF	#000000	##000000
##57B8EA	1.00	2.22	9.45	9.45
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.45	21.00	1.00	1.00
##000000	9.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B6EC

Deuteranopia (green-blind)

#8BA7E9

Tritanopia (blue-blind)

#00C5C9

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #57b8ea;
/* rgb */ color: rgb(87, 184, 234);
/* oklch */ color: oklch(74.4% 0.116 233.8);

Tailwind

colors: {
  custom: {
    50: '#94cdf1',
    500: '#57b8ea',
    950: '#000000',
  },
}

SCSS

$custom: #57b8ea;
$custom-light: #94cdf1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b8ea",
  "rgb": {
    "r": 87,
    "g": 184,
    "b": 234
  },
  "hsl": {
    "h": 200.408,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.7444,
    "c": 0.11599,
    "h": 233.8
  },
  "luminance": 0.42248
}

Semantic roles & 50–950 ramp

primary

#57B8EA

secondary

#E9C6B4

accent

#520BDA

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B8EA

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

Preview Lab → · Contrast checker → · Palette generator →