#372A8B#372A8B

#372A8B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.6% C 0.153 H 281.8°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#372A8B
RGB	rgb(55, 42, 139)
HSL	hsl(248, 54%, 35%)
HSV	hsv(248, 70%, 55%)
CMYK	cmyk(60.4%, 69.8%, 0%, 45.5%)
CIE-LAB	lab(24.74, 34.60, -52.04)
CIE-LCH	lch(24.74, 62.49, 303.62°)
OKLab	oklab(36.6% 0.0313 -0.1498)
OKLCH	oklch(36.6% 0.153 281.8)
XYZ	xyz(7.0623, 4.3318, 24.8851)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A8B #7E8B2A

analogous

#2A4D8B #372A8B #672A8B

triadic

#372A8B #8B372A #2A8B37

tetradic

#372A8B #8B2A4D #7E8B2A #2A8B67

square

#372A8B #8B2A4D #7E8B2A #2A8B67

split-complementary

#372A8B #8B672A #4D8B2A

monochromatic

#120E2D #241C5C #372A8B #4A38BA #6F60CF

Accessibility & contrast

On white

11.25

#372A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#372A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A8B

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A8B	#FFFFFF	#000000	##FFFFFF
##372A8B	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003789

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #372a8b;
/* rgb */ color: rgb(55, 42, 139);
/* oklch */ color: oklch(36.6% 0.153 281.8);

Tailwind

colors: {
  custom: {
    50: '#7865ae',
    500: '#372a8b',
    950: '#000000',
  },
}

SCSS

$custom: #372a8b;
$custom-light: #7865ae;
$custom-dark: #000000;

JSON

{
  "hex": "#372a8b",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 139
  },
  "hsl": {
    "h": 248.041,
    "s": 53.591,
    "l": 35.49
  },
  "oklch": {
    "l": 0.36599,
    "c": 0.15309,
    "h": 281.8
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#372A8B

secondary

#A9B55C

accent

#DD4BC9

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #372A8B

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

Preview Lab → · Contrast checker → · Palette generator →