#373BD9#373BD9

#373BD9 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.9% C 0.232 H 271.9°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX#373BD9
RGBrgb(55, 59, 217)
HSLhsl(239, 68%, 53%)
HSVhsv(239, 75%, 85%)
CMYKcmyk(74.7%, 72.8%, 0%, 14.9%)
CIE-LABlab(35.88, 50.47, -80.26)
CIE-LCHlch(35.88, 94.81, 302.16°)
OKLaboklab(46.86% 0.0078 -0.2323)
OKLCHoklch(46.86% 0.232 271.9)
XYZxyz(15.6597, 8.9482, 66.5341)
Luminance0.0895 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373BD9 #D9D537
analogous
#378CD9 #373BD9 #8437D9
triadic
#373BD9 #D9373B #3BD937
tetradic
#373BD9 #D9378C #D9D537 #37D984
square
#373BD9 #D9378C #D9D537 #37D984
split-complementary
#373BD9 #D98437 #8CD937
monochromatic
#181A7E #2225B1 #373BD9 #6A6DE3 #9EA0ED

Accessibility & contrast

On white

7.53
#373BD9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.79
#373BD9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BD9
7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373BD9#FFFFFF#000000##FFFFFF
##373BD91.007.532.797.53
#FFFFFF7.531.0021.001.00
#0000002.7921.001.0021.00
##FFFFFF7.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005CDE
Deuteranopia (green-blind)
#004CD6
Tritanopia (blue-blind)
#006987
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #373bd9;
/* rgb */ color: rgb(55, 59, 217);
/* oklch */ color: oklch(46.9% 0.232 271.9);
Tailwind
colors: {
  custom: {
    50: '#8773e6',
    500: '#373bd9',
    950: '#000000',
  },
}
SCSS
$custom: #373bd9;
$custom-light: #8773e6;
$custom-dark: #000000;
JSON
{
  "hex": "#373bd9",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 217
  },
  "hsl": {
    "h": 238.519,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.46857,
    "c": 0.23245,
    "h": 271.9
  },
  "luminance": 0.0895
}

Semantic roles & 50–950 ramp

primary
#373BD9
secondary
#D9D793
accent
#E73DEB
background
#F9F7FE
surface
#F1EDFD
border
#CBC8D5
text
#0D0816
muted
#7E7B84

Preview Lab

Preview with #373BD9

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

Preview Lab → · Contrast checker → · Palette generator →

#373BD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva