#372BA9#372BA9

#372BA9 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.7% C 0.190 H 277.5°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#372BA9
RGB	rgb(55, 43, 169)
HSL	hsl(246, 59%, 42%)
HSV	hsv(246, 75%, 66%)
CMYK	cmyk(67.5%, 74.6%, 0%, 33.7%)
CIE-LAB	lab(27.86, 43.81, -65.28)
CIE-LCH	lch(27.86, 78.62, 303.87°)
OKLab	oklab(39.71% 0.0249 -0.1886)
OKLCH	oklch(39.71% 0.19 277.5)
XYZ	xyz(9.5985, 5.4037, 38.0656)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA9 #9DA92B

analogous

#2B5EA9 #372BA9 #762BA9

triadic

#372BA9 #A9372B #2BA937

tetradic

#372BA9 #A92B5E #9DA92B #2BA976

square

#372BA9 #A92B5E #9DA92B #2BA976

split-complementary

#372BA9 #A9762B #5EA92B

monochromatic

#171247 #271F78 #372BA9 #5042CF #7D73DB

Accessibility & contrast

On white

10.09

#372BA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#372BA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA9

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA9	#FFFFFF	#000000	##FFFFFF
##372BA9	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)

#0047AD

Deuteranopia (green-blind)

#003CA7

Tritanopia (blue-blind)

#004F68

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372ba9;
/* rgb */ color: rgb(55, 43, 169);
/* oklch */ color: oklch(39.7% 0.190 277.5);

Tailwind

colors: {
  custom: {
    50: '#7e67c4',
    500: '#372ba9',
    950: '#000000',
  },
}

SCSS

$custom: #372ba9;
$custom-light: #7e67c4;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba9",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 169
  },
  "hsl": {
    "h": 245.714,
    "s": 59.434,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39705,
    "c": 0.19021,
    "h": 277.5
  },
  "luminance": 0.05405
}

Semantic roles & 50–950 ramp

primary

#372BA9

secondary

#BBC36D

accent

#E345D4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372BA9

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

Preview Lab → · Contrast checker → · Palette generator →