#372B8D#372B8D

#372B8D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.9% C 0.155 H 281.3°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#372B8D
RGB	rgb(55, 43, 141)
HSL	hsl(247, 53%, 36%)
HSV	hsv(247, 70%, 55%)
CMYK	cmyk(61%, 69.5%, 0%, 44.7%)
CIE-LAB	lab(25.15, 34.66, -52.62)
CIE-LCH	lch(25.15, 63.01, 303.37°)
OKLab	oklab(36.95% 0.0302 -0.1515)
OKLCH	oklch(36.95% 0.155 281.3)
XYZ	xyz(7.2456, 4.4626, 25.6737)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372B8D #818D2B

analogous

#2B508D #372B8D #682B8D

triadic

#372B8D #8D372B #2B8D37

tetradic

#372B8D #8D2B50 #818D2B #2B8D68

square

#372B8D #8D2B50 #818D2B #2B8D68

split-complementary

#372B8D #8D682B #508D2B

monochromatic

#120E2F #251D5E #372B8D #4939BC #7063CF

Accessibility & contrast

On white

11.10

#372B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#372B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372B8D

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372B8D	#FFFFFF	#000000	##FFFFFF
##372B8D	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00388B

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #372b8d;
/* rgb */ color: rgb(55, 43, 141);
/* oklch */ color: oklch(36.9% 0.155 281.3);

Tailwind

colors: {
  custom: {
    50: '#7865af',
    500: '#372b8d',
    950: '#000000',
  },
}

SCSS

$custom: #372b8d;
$custom-light: #7865af;
$custom-dark: #000000;

JSON

{
  "hex": "#372b8d",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 141
  },
  "hsl": {
    "h": 247.347,
    "s": 53.261,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36948,
    "c": 0.15452,
    "h": 281.3
  },
  "luminance": 0.04463
}

Semantic roles & 50–950 ramp

primary

#372B8D

secondary

#ABB65E

accent

#DD4BCB

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #372B8D

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

Preview Lab → · Contrast checker → · Palette generator →