#372A9D#372A9D

#372A9D is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.3% C 0.176 H 279.2°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#372A9D
RGB	rgb(55, 42, 157)
HSL	hsl(247, 58%, 39%)
HSV	hsv(247, 73%, 62%)
CMYK	cmyk(65%, 73.2%, 0%, 38.4%)
CIE-LAB	lab(26.45, 40.50, -60.32)
CIE-LCH	lch(26.45, 72.65, 303.88°)
OKLab	oklab(38.35% 0.0281 -0.1741)
OKLCH	oklch(38.35% 0.176 279.2)
XYZ	xyz(8.4874, 4.9018, 32.3906)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A9D #909D2A

analogous

#2A579D #372A9D #712A9D

triadic

#372A9D #9D372A #2A9D37

tetradic

#372A9D #9D2A57 #909D2A #2A9D71

square

#372A9D #9D2A57 #909D2A #2A9D71

split-complementary

#372A9D #9D712A #579D2A

monochromatic

#15103C #261D6D #372A9D #4A3ACA #776AD7

Accessibility & contrast

On white

10.60

#372A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#372A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A9D

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A9D	#FFFFFF	#000000	##FFFFFF
##372A9D	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A0

Deuteranopia (green-blind)

#003A9B

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #372a9d;
/* rgb */ color: rgb(55, 42, 157);
/* oklch */ color: oklch(38.3% 0.176 279.2);

Tailwind

colors: {
  custom: {
    50: '#7b65bb',
    500: '#372a9d',
    950: '#000000',
  },
}

SCSS

$custom: #372a9d;
$custom-light: #7b65bb;
$custom-dark: #000000;

JSON

{
  "hex": "#372a9d",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 157
  },
  "hsl": {
    "h": 246.783,
    "s": 57.789,
    "l": 39.02
  },
  "oklch": {
    "l": 0.38348,
    "c": 0.17632,
    "h": 279.2
  },
  "luminance": 0.04902
}

Semantic roles & 50–950 ramp

primary

#372A9D

secondary

#B4BE65

accent

#E147D0

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372A9D

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

Preview Lab → · Contrast checker → · Palette generator →