#373AC3#373AC3

#373AC3 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.5% C 0.207 H 273.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX#373AC3
RGBrgb(55, 58, 195)
HSLhsl(239, 56%, 49%)
HSVhsv(239, 72%, 76%)
CMYKcmyk(71.8%, 70.3%, 0%, 23.5%)
CIE-LABlab(33.51, 43.76, -71.40)
CIE-LCHlch(33.51, 83.74, 301.51°)
OKLaboklab(44.51% 0.0116 -0.2065)
OKLCHoklch(44.51% 0.207 273.2)
XYZxyz(12.9356, 7.7772, 52.4386)
Luminance0.0778 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373AC3 #C3C037
analogous
#3780C3 #373AC3 #7A37C3
triadic
#373AC3 #C3373A #3AC337
tetradic
#373AC3 #C33780 #C3C037 #37C37A
square
#373AC3 #C33780 #C3C037 #37C37A
split-complementary
#373AC3 #C37A37 #80C337
monochromatic
#1C1E64 #2A2C93 #373AC3 #6466D3 #9495E1

Accessibility & contrast

On white

8.22
#373AC3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.56
#373AC3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373AC3
8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373AC3#FFFFFF#000000##FFFFFF
##373AC31.008.222.568.22
#FFFFFF8.221.0021.001.00
#0000002.5621.001.0021.00
##FFFFFF8.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0055C7
Deuteranopia (green-blind)
#0048C0
Tritanopia (blue-blind)
#00607A
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #373ac3;
/* rgb */ color: rgb(55, 58, 195);
/* oklch */ color: oklch(44.5% 0.207 273.2);
Tailwind
colors: {
  custom: {
    50: '#8271d6',
    500: '#373ac3',
    950: '#000000',
  },
}
SCSS
$custom: #373ac3;
$custom-light: #8271d6;
$custom-dark: #000000;
JSON
{
  "hex": "#373ac3",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 195
  },
  "hsl": {
    "h": 238.714,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44514,
    "c": 0.20682,
    "h": 273.2
  },
  "luminance": 0.07778
}

Semantic roles & 50–950 ramp

primary
#373AC3
secondary
#CCCA8A
accent
#DC49DF
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0814
muted
#7D7B83

Preview Lab

Preview with #373AC3

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

Preview Lab → · Contrast checker → · Palette generator →

#373AC3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva