#372D9E#372D9E

#372D9E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.174 H 278.5°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#372D9E
RGB	rgb(55, 45, 158)
HSL	hsl(245, 56%, 40%)
HSV	hsv(245, 72%, 62%)
CMYK	cmyk(65.2%, 71.5%, 0%, 38%)
CIE-LAB	lab(27.18, 39.08, -59.73)
CIE-LCH	lch(27.18, 71.39, 303.20°)
OKLab	oklab(38.89% 0.0257 -0.1724)
OKLCH	oklch(38.89% 0.174 278.5)
XYZ	xyz(8.6835, 5.1569, 32.8789)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372D9E #949E2D

analogous

#2D5B9E #372D9E #702D9E

triadic

#372D9E #9E372D #2D9E37

tetradic

#372D9E #9E2D5B #949E2D #2D9E70

square

#372D9E #9E2D5B #949E2D #2D9E70

split-complementary

#372D9E #9E702D #5B9E2D

monochromatic

#16123F #261F6E #372D9E #4C40C9 #786FD6

Accessibility & contrast

On white

10.34

#372D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#372D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372D9E

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372D9E	#FFFFFF	#000000	##FFFFFF
##372D9E	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A1

Deuteranopia (green-blind)

#003C9C

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372d9e;
/* rgb */ color: rgb(55, 45, 158);
/* oklch */ color: oklch(38.9% 0.174 278.5);

Tailwind

colors: {
  custom: {
    50: '#7b67bc',
    500: '#372d9e',
    950: '#000000',
  },
}

SCSS

$custom: #372d9e;
$custom-light: #7b67bc;
$custom-dark: #000000;

JSON

{
  "hex": "#372d9e",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 158
  },
  "hsl": {
    "h": 245.31,
    "s": 55.665,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38894,
    "c": 0.1743,
    "h": 278.5
  },
  "luminance": 0.05158
}

Semantic roles & 50–950 ramp

primary

#372D9E

secondary

#B6BD69

accent

#DF49D2

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372D9E

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

Preview Lab → · Contrast checker → · Palette generator →