#372D9D#372D9D

#372D9D is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.8% C 0.173 H 278.6°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#372D9D
RGB	rgb(55, 45, 157)
HSL	hsl(245, 55%, 40%)
HSV	hsv(245, 71%, 62%)
CMYK	cmyk(65%, 71.3%, 0%, 38.4%)
CIE-LAB	lab(27.08, 38.76, -59.28)
CIE-LCH	lch(27.08, 70.83, 303.17°)
OKLab	oklab(38.8% 0.0259 -0.1711)
OKLCH	oklch(38.8% 0.173 278.6)
XYZ	xyz(8.5978, 5.1226, 32.4274)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372D9D #939D2D

analogous

#2D5B9D #372D9D #6F2D9D

triadic

#372D9D #9D372D #2D9D37

tetradic

#372D9D #9D2D5B #939D2D #2D9D6F

square

#372D9D #9D2D5B #939D2D #2D9D6F

split-complementary

#372D9D #9D6F2D #5B9D2D

monochromatic

#16123E #261F6D #372D9D #4B3FC8 #786FD6

Accessibility & contrast

On white

10.37

#372D9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#372D9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372D9D

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372D9D	#FFFFFF	#000000	##FFFFFF
##372D9D	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A0

Deuteranopia (green-blind)

#003B9B

Tritanopia (blue-blind)

#004B61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372d9d;
/* rgb */ color: rgb(55, 45, 157);
/* oklch */ color: oklch(38.8% 0.173 278.6);

Tailwind

colors: {
  custom: {
    50: '#7b67bb',
    500: '#372d9d',
    950: '#000000',
  },
}

SCSS

$custom: #372d9d;
$custom-light: #7b67bb;
$custom-dark: #000000;

JSON

{
  "hex": "#372d9d",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 157
  },
  "hsl": {
    "h": 245.357,
    "s": 55.446,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38796,
    "c": 0.17302,
    "h": 278.6
  },
  "luminance": 0.05123
}

Semantic roles & 50–950 ramp

primary

#372D9D

secondary

#B5BD69

accent

#DF49D1

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372D9D

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

Preview Lab → · Contrast checker → · Palette generator →