#372AAB#372AAB

#372AAB is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.8% C 0.194 H 277.4°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#372AAB
RGB	rgb(55, 42, 171)
HSL	hsl(246, 61%, 42%)
HSV	hsv(246, 75%, 67%)
CMYK	cmyk(67.8%, 75.4%, 0%, 32.9%)
CIE-LAB	lab(27.87, 45.00, -66.47)
CIE-LCH	lch(27.87, 80.26, 304.10°)
OKLab	oklab(39.77% 0.0251 -0.192)
OKLCH	oklch(39.77% 0.194 277.4)
XYZ	xyz(9.7518, 5.4076, 39.0500)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AAB #9EAB2A

analogous

#2A5DAB #372AAB #782AAB

triadic

#372AAB #AB372A #2AAB37

tetradic

#372AAB #AB2A5D #9EAB2A #2AAB78

square

#372AAB #AB2A5D #9EAB2A #2AAB78

split-complementary

#372AAB #AB782A #5DAB2A

monochromatic

#171249 #271E7A #372AAB #5042D1 #7D73DD

Accessibility & contrast

On white

10.09

#372AAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#372AAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AAB

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AAB	#FFFFFF	#000000	##FFFFFF
##372AAB	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AF

Deuteranopia (green-blind)

#003CA9

Tritanopia (blue-blind)

#004F69

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372aab;
/* rgb */ color: rgb(55, 42, 171);
/* oklch */ color: oklch(39.8% 0.194 277.4);

Tailwind

colors: {
  custom: {
    50: '#7e66c5',
    500: '#372aab',
    950: '#000000',
  },
}

SCSS

$custom: #372aab;
$custom-light: #7e66c5;
$custom-dark: #000000;

JSON

{
  "hex": "#372aab",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 171
  },
  "hsl": {
    "h": 246.047,
    "s": 60.563,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39773,
    "c": 0.19365,
    "h": 277.4
  },
  "luminance": 0.05408
}

Semantic roles & 50–950 ramp

primary

#372AAB

secondary

#BBC46D

accent

#E444D4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372AAB

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

Preview Lab → · Contrast checker → · Palette generator →