#372CA3#372CA3

#372CA3 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.2% C 0.182 H 278.1°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#372CA3
RGB	rgb(55, 44, 163)
HSL	hsl(246, 57%, 41%)
HSV	hsv(246, 73%, 64%)
CMYK	cmyk(66.3%, 73%, 0%, 36.1%)
CIE-LAB	lab(27.46, 41.30, -62.31)
CIE-LCH	lch(27.46, 74.76, 303.54°)
OKLab	oklab(39.24% 0.0255 -0.1799)
OKLCH	oklch(39.24% 0.182 278.1)
XYZ	xyz(9.0850, 5.2572, 35.1792)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372CA3 #98A32C

analogous

#2C5CA3 #372CA3 #722CA3

triadic

#372CA3 #A3372C #2CA337

tetradic

#372CA3 #A32C5C #98A32C #2CA372

square

#372CA3 #A32C5C #98A32C #2CA372

split-complementary

#372CA3 #A3722C #5CA32C

monochromatic

#161243 #271F73 #372CA3 #4D41CC #7A71D9

Accessibility & contrast

On white

10.24

#372CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#372CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CA3

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CA3	#FFFFFF	#000000	##FFFFFF
##372CA3	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A7

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372ca3;
/* rgb */ color: rgb(55, 44, 163);
/* oklch */ color: oklch(39.2% 0.182 278.1);

Tailwind

colors: {
  custom: {
    50: '#7c67bf',
    500: '#372ca3',
    950: '#000000',
  },
}

SCSS

$custom: #372ca3;
$custom-light: #7c67bf;
$custom-dark: #000000;

JSON

{
  "hex": "#372ca3",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 163
  },
  "hsl": {
    "h": 245.546,
    "s": 57.488,
    "l": 40.588
  },
  "oklch": {
    "l": 0.3924,
    "c": 0.18172,
    "h": 278.1
  },
  "luminance": 0.05258
}

Semantic roles & 50–950 ramp

primary

#372CA3

secondary

#B8C06B

accent

#E147D3

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372CA3

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

Preview Lab → · Contrast checker → · Palette generator →