#57B8F6#57B8F6

#57B8F6 is a light, vivid cyan. Relative luminance 0.430; OKLCH L 75.0% C 0.128 H 239.7°. Best body text is #000000 at 9.59:1 contrast (WCAG AA passes).

Color values

HEX#57B8F6
RGBrgb(87, 184, 246)
HSLhsl(203, 90%, 65%)
HSVhsv(203, 65%, 96%)
CMYKcmyk(64.6%, 25.2%, 0%, 3.5%)
CIE-LABlab(71.53, -9.90, -39.18)
CIE-LCHlch(71.53, 40.41, 255.82°)
OKLaboklab(74.99% -0.0645 -0.1102)
OKLCHoklch(74.99% 0.128 239.7)
XYZxyz(37.6992, 42.9571, 93.4757)
Luminance0.4296 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57B8F6 #F69557
analogous
#57F6E4 #57B8F6 #5768F6
triadic
#57B8F6 #F657B8 #B8F657
tetradic
#57B8F6 #E457F6 #F69557 #68F657
square
#57B8F6 #E457F6 #F69557 #68F657
split-complementary
#57B8F6 #F65768 #F6E457
monochromatic
#0B7EC8 #1D9FF3 #57B8F6 #91D1F9 #CBE9FC

Accessibility & contrast

On white

2.19
#57B8F6 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.59
#57B8F6 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B8F6
9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57B8F6#FFFFFF#000000##000000
##57B8F61.002.199.599.59
#FFFFFF2.191.0021.0021.00
#0000009.5921.001.001.00
##0000009.5921.001.001.00

Color blindness preview

Protanopia (red-blind)
#9CB8F9
Deuteranopia (green-blind)
#86A8F5
Tritanopia (blue-blind)
#00C8CD
Achromatopsia (no color)
#AFAFAF

Design tokens & code

CSS
--color: #57b8f6;
/* rgb */ color: rgb(87, 184, 246);
/* oklch */ color: oklch(75.0% 0.128 239.7);
Tailwind
colors: {
  custom: {
    50: '#95cdf9',
    500: '#57b8f6',
    950: '#000000',
  },
}
SCSS
$custom: #57b8f6;
$custom-light: #95cdf9;
$custom-dark: #000000;
JSON
{
  "hex": "#57b8f6",
  "rgb": {
    "r": 87,
    "g": 184,
    "b": 246
  },
  "hsl": {
    "h": 203.396,
    "s": 89.831,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74987,
    "c": 0.12768,
    "h": 239.7
  },
  "luminance": 0.42961
}

Semantic roles & 50–950 ramp

primary
#57B8F6
secondary
#EFCFBA
accent
#5900E6
background
#F9FCFF
surface
#F2F8FF
border
#CCD1D7
text
#0F1317
muted
#7E8285

Preview Lab

Preview with #57B8F6

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

Preview Lab → · Contrast checker → · Palette generator →

#57B8F6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva