#372D81#372D81

#372D81 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.136 H 282.6°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#372D81
RGB	rgb(55, 45, 129)
HSL	hsl(247, 48%, 34%)
HSV	hsv(247, 65%, 51%)
CMYK	cmyk(57.4%, 65.1%, 0%, 49.4%)
CIE-LAB	lab(24.56, 29.40, -46.08)
CIE-LCH	lch(24.56, 54.66, 302.54°)
OKLab	oklab(36.19% 0.0297 -0.1324)
OKLCH	oklch(36.19% 0.136 282.6)
XYZ	xyz(6.4752, 4.2736, 21.2483)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372D81 #77812D

analogous

#2D4D81 #372D81 #612D81

triadic

#372D81 #81372D #2D8137

tetradic

#372D81 #812D4D #77812D #2D8161

square

#372D81 #812D4D #77812D #2D8161

split-complementary

#372D81 #81612D #4D812D

monochromatic

#100D26 #241D54 #372D81 #4A3DAE #6D61C8

Accessibility & contrast

On white

11.32

#372D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#372D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372D81

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372D81	#FFFFFF	#000000	##FFFFFF
##372D81	1.00	11.32	1.85	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D84

Deuteranopia (green-blind)

#00377F

Tritanopia (blue-blind)

#134252

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #372d81;
/* rgb */ color: rgb(55, 45, 129);
/* oklch */ color: oklch(36.2% 0.136 282.6);

Tailwind

colors: {
  custom: {
    50: '#7666a6',
    500: '#372d81',
    950: '#000000',
  },
}

SCSS

$custom: #372d81;
$custom-light: #7666a6;
$custom-dark: #000000;

JSON

{
  "hex": "#372d81",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 129
  },
  "hsl": {
    "h": 247.143,
    "s": 48.276,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36194,
    "c": 0.13565,
    "h": 282.6
  },
  "luminance": 0.04274
}

Semantic roles & 50–950 ramp

primary

#372D81

secondary

#A4AE5C

accent

#D850C8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #372D81

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

Preview Lab → · Contrast checker → · Palette generator →