#372F9D#372F9D

#372F9D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.1% C 0.171 H 278.2°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#372F9D
RGB	rgb(55, 47, 157)
HSL	hsl(244, 54%, 40%)
HSV	hsv(244, 70%, 62%)
CMYK	cmyk(65%, 70.1%, 0%, 38.4%)
CIE-LAB	lab(27.52, 37.56, -58.57)
CIE-LCH	lch(27.52, 69.58, 302.67°)
OKLab	oklab(39.11% 0.0244 -0.169)
OKLCH	oklch(39.11% 0.171 278.2)
XYZ	xyz(8.6759, 5.2789, 32.4535)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372F9D #959D2F

analogous

#2F5E9D #372F9D #6E2F9D

triadic

#372F9D #9D372F #2F9D37

tetradic

#372F9D #9D2F5E #959D2F #2F9D6E

square

#372F9D #9D2F5E #959D2F #2F9D6E

split-complementary

#372F9D #9D6E2F #5E9D2F

monochromatic

#16133F #27216E #372F9D #4C43C7 #7972D5

Accessibility & contrast

On white

10.21

#372F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#372F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372F9D

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372F9D	#FFFFFF	#000000	##FFFFFF
##372F9D	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A0

Deuteranopia (green-blind)

#003C9B

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372f9d;
/* rgb */ color: rgb(55, 47, 157);
/* oklch */ color: oklch(39.1% 0.171 278.2);

Tailwind

colors: {
  custom: {
    50: '#7b69bb',
    500: '#372f9d',
    950: '#000000',
  },
}

SCSS

$custom: #372f9d;
$custom-light: #7b69bb;
$custom-dark: #000000;

JSON

{
  "hex": "#372f9d",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 157
  },
  "hsl": {
    "h": 244.364,
    "s": 53.922,
    "l": 40
  },
  "oklch": {
    "l": 0.39107,
    "c": 0.17075,
    "h": 278.2
  },
  "luminance": 0.0528
}

Semantic roles & 50–950 ramp

primary

#372F9D

secondary

#B6BC6B

accent

#DD4BD3

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #372F9D

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

Preview Lab → · Contrast checker → · Palette generator →