#373AD9#373AD9

#373AD9 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.7% C 0.233 H 272.0°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX#373AD9
RGBrgb(55, 58, 217)
HSLhsl(239, 68%, 53%)
HSVhsv(239, 75%, 85%)
CMYKcmyk(74.7%, 73.3%, 0%, 14.9%)
CIE-LABlab(35.69, 51.02, -80.59)
CIE-LCHlch(35.69, 95.38, 302.34°)
OKLaboklab(46.72% 0.0083 -0.2333)
OKLCHoklch(46.72% 0.233 272)
XYZxyz(15.6088, 8.8464, 66.5171)
Luminance0.0885 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373AD9 #D9D637
analogous
#378BD9 #373AD9 #8537D9
triadic
#373AD9 #D9373A #3AD937
tetradic
#373AD9 #D9378B #D9D637 #37D985
square
#373AD9 #D9378B #D9D637 #37D985
split-complementary
#373AD9 #D98537 #8BD937
monochromatic
#181A7E #2224B1 #373AD9 #6A6DE3 #9E9FED

Accessibility & contrast

On white

7.58
#373AD9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.77
#373AD9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373AD9
7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373AD9#FFFFFF#000000##FFFFFF
##373AD91.007.582.777.58
#FFFFFF7.581.0021.001.00
#0000002.7721.001.0021.00
##FFFFFF7.581.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005CDE
Deuteranopia (green-blind)
#004CD6
Tritanopia (blue-blind)
#006886
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #373ad9;
/* rgb */ color: rgb(55, 58, 217);
/* oklch */ color: oklch(46.7% 0.233 272.0);
Tailwind
colors: {
  custom: {
    50: '#8772e6',
    500: '#373ad9',
    950: '#000000',
  },
}
SCSS
$custom: #373ad9;
$custom-light: #8772e6;
$custom-dark: #000000;
JSON
{
  "hex": "#373ad9",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 217
  },
  "hsl": {
    "h": 238.889,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.46717,
    "c": 0.23341,
    "h": 272
  },
  "luminance": 0.08848
}

Semantic roles & 50–950 ramp

primary
#373AD9
secondary
#D9D793
accent
#E83DEB
background
#F9F7FE
surface
#F1EDFD
border
#CBC8D5
text
#0D0816
muted
#7E7B84

Preview Lab

Preview with #373AD9

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

Preview Lab → · Contrast checker → · Palette generator →

#373AD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva