#57B2EB#57B2EB

#57B2EB is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.1% C 0.120 H 238.9°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#57B2EB
RGB	rgb(87, 178, 235)
HSL	hsl(203, 79%, 63%)
HSV	hsv(203, 63%, 92%)
CMYK	cmyk(63%, 24.3%, 0%, 7.8%)
CIE-LAB	lab(69.37, -10.14, -36.56)
CIE-LCH	lch(69.37, 37.94, 254.50°)
OKLab	oklab(73.13% -0.062 -0.1027)
OKLCH	oklch(73.13% 0.12 238.9)
XYZ	xyz(34.8406, 39.8617, 84.4391)
Luminance	0.3987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B2EB #EB9057

analogous

#57EBDA #57B2EB #5768EB

triadic

#57B2EB #EB57B2 #B2EB57

tetradic

#57B2EB #DA57EB #EB9057 #68EB57

square

#57B2EB #DA57EB #EB9057 #68EB57

split-complementary

#57B2EB #EB5768 #EBDA57

monochromatic

#1576B2 #2099E4 #57B2EB #8ECBF2 #C4E4F8

Accessibility & contrast

On white

2.34

#57B2EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#57B2EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B2EB

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B2EB	#FFFFFF	#000000	##000000
##57B2EB	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B2EE

Deuteranopia (green-blind)

#83A3EA

Tritanopia (blue-blind)

#00C0C5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b2eb;
/* rgb */ color: rgb(87, 178, 235);
/* oklch */ color: oklch(73.1% 0.120 238.9);

Tailwind

colors: {
  custom: {
    50: '#94c8f1',
    500: '#57b2eb',
    950: '#000000',
  },
}

SCSS

$custom: #57b2eb;
$custom-light: #94c8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#57b2eb",
  "rgb": {
    "r": 87,
    "g": 178,
    "b": 235
  },
  "hsl": {
    "h": 203.108,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.73128,
    "c": 0.11993,
    "h": 238.9
  },
  "luminance": 0.39865
}

Semantic roles & 50–950 ramp

primary

#57B2EB

secondary

#E9C9B4

accent

#5B0ADB

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #57B2EB

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

Preview Lab → · Contrast checker → · Palette generator →