#57A9ED#57A9ED

#57A9ED is a light, vivid cyan. Relative luminance 0.365; OKLCH L 71.2% C 0.128 H 246.0°. Best body text is #000000 at 8.30:1 contrast (WCAG AA passes).

Color values

HEX#57A9ED
RGBrgb(87, 169, 237)
HSLhsl(207, 81%, 64%)
HSVhsv(207, 63%, 93%)
CMYKcmyk(63.3%, 28.7%, 0%, 7.1%)
CIE-LABlab(66.91, -4.54, -41.49)
CIE-LCHlch(66.91, 41.74, 263.75°)
OKLaboklab(71.21% -0.0522 -0.117)
OKLCHoklch(71.21% 0.128 246)
XYZxyz(33.3988, 36.5133, 85.3920)
Luminance0.3652 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#57A9ED #ED9B57
analogous
#57EDE6 #57A9ED #575EED
triadic
#57A9ED #ED57A9 #A9ED57
tetradic
#57A9ED #E657ED #ED9B57 #5EED57
square
#57A9ED #E657ED #ED9B57 #5EED57
split-complementary
#57A9ED #ED575E #EDE657
monochromatic
#146CB6 #208DE7 #57A9ED #8EC5F3 #C6E2F9

Accessibility & contrast

On white

2.53
#57A9ED on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.30
#57A9ED on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A9ED
8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##57A9ED#FFFFFF#000000##000000
##57A9ED1.002.538.308.30
#FFFFFF2.531.0021.0021.00
#0000008.3021.001.001.00
##0000008.3021.001.001.00

Color blindness preview

Protanopia (red-blind)
#8BABF0
Deuteranopia (green-blind)
#779CEC
Tritanopia (blue-blind)
#00B9C1
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #57a9ed;
/* rgb */ color: rgb(87, 169, 237);
/* oklch */ color: oklch(71.2% 0.128 246.0);
Tailwind
colors: {
  custom: {
    50: '#94c2f3',
    500: '#57a9ed',
    950: '#000000',
  },
}
SCSS
$custom: #57a9ed;
$custom-light: #94c2f3;
$custom-dark: #000000;
JSON
{
  "hex": "#57a9ed",
  "rgb": {
    "r": 87,
    "g": 169,
    "b": 237
  },
  "hsl": {
    "h": 207.2,
    "s": 80.645,
    "l": 63.529
  },
  "oklch": {
    "l": 0.71211,
    "c": 0.12811,
    "h": 246
  },
  "luminance": 0.36517
}

Semantic roles & 50–950 ramp

primary
#57A9ED
secondary
#EACDB5
accent
#6909DD
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1217
muted
#7E8185

Preview Lab

Preview with #57A9ED

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

Preview Lab → · Contrast checker → · Palette generator →

#57A9ED Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva