#57B5E7#57B5E7

#57B5E7 is a light, moderate cyan. Relative luminance 0.408; OKLCH L 73.6% C 0.115 H 234.6°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#57B5E7
RGB	rgb(87, 181, 231)
HSL	hsl(201, 75%, 62%)
HSV	hsv(201, 62%, 91%)
CMYK	cmyk(62.3%, 21.6%, 0%, 9.4%)
CIE-LAB	lab(70.06, -13.02, -33.30)
CIE-LCH	lch(70.06, 35.76, 248.65°)
OKLab	oklab(73.63% -0.0664 -0.0933)
OKLCH	oklch(73.63% 0.115 234.6)
XYZ	xyz(34.8726, 40.8400, 81.6309)
Luminance	0.4084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5E7 #E78957

analogous

#57E7D1 #57B5E7 #576DE7

triadic

#57B5E7 #E757B5 #B5E757

tetradic

#57B5E7 #D157E7 #E78957 #6DE757

square

#57B5E7 #D157E7 #E78957 #6DE757

split-complementary

#57B5E7 #E7576D #E7D157

monochromatic

#1878AB #219DDF #57B5E7 #8DCDEF #C2E4F6

Accessibility & contrast

On white

2.29

#57B5E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#57B5E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5E7

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5E7	#FFFFFF	#000000	##000000
##57B5E7	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB3E9

Deuteranopia (green-blind)

#89A5E6

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b5e7;
/* rgb */ color: rgb(87, 181, 231);
/* oklch */ color: oklch(73.6% 0.115 234.6);

Tailwind

colors: {
  custom: {
    50: '#93cbee',
    500: '#57b5e7',
    950: '#000000',
  },
}

SCSS

$custom: #57b5e7;
$custom-light: #93cbee;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5e7",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 231
  },
  "hsl": {
    "h": 200.833,
    "s": 75,
    "l": 62.353
  },
  "oklch": {
    "l": 0.73625,
    "c": 0.11451,
    "h": 234.6
  },
  "luminance": 0.40844
}

Semantic roles & 50–950 ramp

primary

#57B5E7

secondary

#E7C5B3

accent

#540ED7

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5E7

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

Preview Lab → · Contrast checker → · Palette generator →