#372EB9#372EB9

#372EB9 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.8% C 0.207 H 275.5°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX#372EB9
RGBrgb(55, 46, 185)
HSLhsl(244, 60%, 45%)
HSVhsv(244, 75%, 73%)
CMYKcmyk(70.3%, 75.1%, 0%, 27.5%)
CIE-LABlab(30.08, 47.29, -71.17)
CIE-LCHlch(30.08, 85.45, 303.60°)
OKLaboklab(41.77% 0.0198 -0.2058)
OKLCHoklch(41.77% 0.207 275.5)
XYZxyz(11.3066, 6.2679, 46.5035)
Luminance0.0627 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#372EB9 #B0B92E
analogous
#2E6AB9 #372EB9 #7C2EB9
triadic
#372EB9 #B9372E #2EB937
tetradic
#372EB9 #B92E6A #B0B92E #2EB97C
square
#372EB9 #B92E6A #B0B92E #2EB97C
split-complementary
#372EB9 #B97C2E #6AB92E
monochromatic
#1A1657 #282288 #372EB9 #5951D4 #8882E0

Accessibility & contrast

On white

9.32
#372EB9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.25
#372EB9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372EB9
9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##372EB9#FFFFFF#000000##FFFFFF
##372EB91.009.322.259.32
#FFFFFF9.321.0021.001.00
#0000002.2521.001.0021.00
##FFFFFF9.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004DBD
Deuteranopia (green-blind)
#0041B7
Tritanopia (blue-blind)
#005671
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #372eb9;
/* rgb */ color: rgb(55, 46, 185);
/* oklch */ color: oklch(41.8% 0.207 275.5);
Tailwind
colors: {
  custom: {
    50: '#8169cf',
    500: '#372eb9',
    950: '#000000',
  },
}
SCSS
$custom: #372eb9;
$custom-light: #8169cf;
$custom-dark: #000000;
JSON
{
  "hex": "#372eb9",
  "rgb": {
    "r": 55,
    "g": 46,
    "b": 185
  },
  "hsl": {
    "h": 243.885,
    "s": 60.173,
    "l": 45.294
  },
  "oklch": {
    "l": 0.41767,
    "c": 0.20671,
    "h": 275.5
  },
  "luminance": 0.06269
}

Semantic roles & 50–950 ramp

primary
#372EB9
secondary
#C4C97A
accent
#E344D9
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0614
muted
#7D7A82

Preview Lab

Preview with #372EB9

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

Preview Lab → · Contrast checker → · Palette generator →

#372EB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva