#257CC4#257CC4

#257CC4 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.137 H 248.4°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX#257CC4
RGBrgb(37, 124, 196)
HSLhsl(207, 68%, 46%)
HSVhsv(207, 81%, 77%)
CMYKcmyk(81.1%, 36.7%, 0%, 23.1%)
CIE-LABlab(50.44, 0.37, -44.62)
CIE-LCHlch(50.44, 44.63, 270.48°)
OKLaboklab(57.18% -0.0504 -0.1272)
OKLCHoklch(57.18% 0.137 248.4)
XYZxyz(17.9306, 18.7919, 54.8960)
Luminance0.1879 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#257CC4 #C46D25
analogous
#25C4BC #257CC4 #252CC4
triadic
#257CC4 #C4257C #7CC425
tetradic
#257CC4 #BC25C4 #C46D25 #2CC425
square
#257CC4 #BC25C4 #C46D25 #2CC425
split-complementary
#257CC4 #C4252C #C4BC25
monochromatic
#123B5D #1B5B91 #257CC4 #499ADD #7DB7E6

Accessibility & contrast

On white

4.41
#257CC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.76
#257CC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257CC4
4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##257CC4#FFFFFF#000000##000000
##257CC41.004.414.764.76
#FFFFFF4.411.0021.0021.00
#0000004.7621.001.001.00
##0000004.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5A80C7
Deuteranopia (green-blind)
#4272C3
Tritanopia (blue-blind)
#008D96
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #257cc4;
/* rgb */ color: rgb(37, 124, 196);
/* oklch */ color: oklch(57.2% 0.137 248.4);
Tailwind
colors: {
  custom: {
    50: '#79a1d6',
    500: '#257cc4',
    950: '#000000',
  },
}
SCSS
$custom: #257cc4;
$custom-light: #79a1d6;
$custom-dark: #000000;
JSON
{
  "hex": "#257cc4",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 196
  },
  "hsl": {
    "h": 207.17,
    "s": 68.24,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57175,
    "c": 0.13686,
    "h": 248.4
  },
  "luminance": 0.18794
}

Semantic roles & 50–950 ramp

primary
#257CC4
secondary
#CF9E76
accent
#8C3DEB
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #257CC4

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

Preview Lab → · Contrast checker → · Palette generator →

#257CC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva