#397CC4#397CC4

#397CC4 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.130 H 252.4°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX#397CC4
RGBrgb(57, 124, 196)
HSLhsl(211, 55%, 50%)
HSVhsv(211, 71%, 77%)
CMYKcmyk(70.9%, 36.7%, 0%, 23.1%)
CIE-LABlab(51.00, 2.82, -43.71)
CIE-LCHlch(51.00, 43.80, 273.69°)
OKLaboklab(57.77% -0.0393 -0.1243)
OKLCHoklch(57.77% 0.13 252.4)
XYZxyz(18.8551, 19.2686, 54.9394)
Luminance0.1927 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#397CC4 #C48139
analogous
#39C2C4 #397CC4 #3B39C4
triadic
#397CC4 #C4397C #7CC439
tetradic
#397CC4 #C439C2 #C48139 #39C43B
square
#397CC4 #C439C2 #C48139 #39C43B
split-complementary
#397CC4 #C43B39 #C2C439
monochromatic
#1D4065 #2B5E95 #397CC4 #679BD3 #97BAE1

Accessibility & contrast

On white

4.33
#397CC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.85
#397CC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CC4
4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##397CC4#FFFFFF#000000##000000
##397CC41.004.334.854.85
#FFFFFF4.331.0021.0021.00
#0000004.8521.001.001.00
##0000004.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#5B81C7
Deuteranopia (green-blind)
#4774C3
Tritanopia (blue-blind)
#008D97
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #397cc4;
/* rgb */ color: rgb(57, 124, 196);
/* oklch */ color: oklch(57.8% 0.130 252.4);
Tailwind
colors: {
  custom: {
    50: '#80a1d6',
    500: '#397cc4',
    950: '#000000',
  },
}
SCSS
$custom: #397cc4;
$custom-light: #80a1d6;
$custom-dark: #000000;
JSON
{
  "hex": "#397cc4",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 196
  },
  "hsl": {
    "h": 211.079,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57769,
    "c": 0.1304,
    "h": 252.4
  },
  "luminance": 0.19271
}

Semantic roles & 50–950 ramp

primary
#397CC4
secondary
#CCAE8D
accent
#974ADE
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #397CC4

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

Preview Lab → · Contrast checker → · Palette generator →

#397CC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva