#57A7EE#57A7EE

#57A7EE is a light, vivid cyan. Relative luminance 0.358; OKLCH L 70.8% C 0.131 H 247.6°. Best body text is #000000 at 8.17:1 contrast (WCAG AA passes).

Color values

HEX#57A7EE
RGBrgb(87, 167, 238)
HSLhsl(208, 82%, 64%)
HSVhsv(208, 63%, 93%)
CMYKcmyk(63.4%, 29.8%, 0%, 6.7%)
CIE-LABlab(66.39, -3.09, -42.85)
CIE-LCHlch(66.39, 42.96, 265.87°)
OKLaboklab(70.82% -0.0499 -0.121)
OKLCHoklch(70.82% 0.131 247.6)
XYZxyz(33.1761, 35.8334, 86.0405)
Luminance0.3584 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A7EE #EE9E57
analogous
#57EEEA #57A7EE #575BEE
triadic
#57A7EE #EE57A7 #A7EE57
tetradic
#57A7EE #EA57EE #EE9E57 #5BEE57
square
#57A7EE #EA57EE #EE9E57 #5BEE57
split-complementary
#57A7EE #EE575B #EEEA57
monochromatic
#136AB8 #1F8AE8 #57A7EE #8FC4F4 #C6E1F9

Accessibility & contrast

On white

2.57
#57A7EE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.17
#57A7EE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A7EE
8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A7EE#FFFFFF#000000##000000
##57A7EE1.002.578.178.17
#FFFFFF2.571.0021.0021.00
#0000008.1721.001.001.00
##0000008.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#88AAF1
Deuteranopia (green-blind)
#739BED
Tritanopia (blue-blind)
#00B8C0
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #57a7ee;
/* rgb */ color: rgb(87, 167, 238);
/* oklch */ color: oklch(70.8% 0.131 247.6);
Tailwind
colors: {
  custom: {
    50: '#94c0f4',
    500: '#57a7ee',
    950: '#000000',
  },
}
SCSS
$custom: #57a7ee;
$custom-light: #94c0f4;
$custom-dark: #000000;
JSON
{
  "hex": "#57a7ee",
  "rgb": {
    "r": 87,
    "g": 167,
    "b": 238
  },
  "hsl": {
    "h": 208.212,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.70818,
    "c": 0.13083,
    "h": 247.6
  },
  "luminance": 0.35837
}

Semantic roles & 50–950 ramp

primary
#57A7EE
secondary
#EBCFB6
accent
#6C08DE
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1217
muted
#7E8185

Preview Lab

Preview with #57A7EE

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

Preview Lab → · Contrast checker → · Palette generator →

#57A7EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva