#372AA4#372AA4

#372AA4 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 39.1% C 0.185 H 278.3°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#372AA4
RGB	rgb(55, 42, 164)
HSL	hsl(246, 59%, 40%)
HSV	hsv(246, 74%, 64%)
CMYK	cmyk(66.5%, 74.4%, 0%, 35.7%)
CIE-LAB	lab(27.15, 42.76, -63.42)
CIE-LCH	lch(27.15, 76.49, 303.99°)
OKLab	oklab(39.05% 0.0266 -0.1831)
OKLCH	oklch(39.05% 0.185 278.3)
XYZ	xyz(9.1022, 5.1477, 35.6287)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AA4 #97A42A

analogous

#2A5AA4 #372AA4 #742AA4

triadic

#372AA4 #A4372A #2AA437

tetradic

#372AA4 #A42A5A #97A42A #2AA474

square

#372AA4 #A42A5A #97A42A #2AA474

split-complementary

#372AA4 #A4742A #5AA42A

monochromatic

#161143 #271E73 #372AA4 #4D3ECD #7A6EDA

Accessibility & contrast

On white

10.35

#372AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#372AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AA4

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AA4	#FFFFFF	#000000	##FFFFFF
##372AA4	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A8

Deuteranopia (green-blind)

#003BA2

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372aa4;
/* rgb */ color: rgb(55, 42, 164);
/* oklch */ color: oklch(39.1% 0.185 278.3);

Tailwind

colors: {
  custom: {
    50: '#7d66c0',
    500: '#372aa4',
    950: '#000000',
  },
}

SCSS

$custom: #372aa4;
$custom-light: #7d66c0;
$custom-dark: #000000;

JSON

{
  "hex": "#372aa4",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 164
  },
  "hsl": {
    "h": 246.393,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39054,
    "c": 0.18506,
    "h": 278.3
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#372AA4

secondary

#B8C169

accent

#E245D2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372AA4

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

Preview Lab → · Contrast checker → · Palette generator →