#372A8E#372A8E

#372A8E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.9% C 0.157 H 281.3°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#372A8E
RGB	rgb(55, 42, 142)
HSL	hsl(248, 54%, 36%)
HSV	hsv(248, 70%, 56%)
CMYK	cmyk(61.3%, 70.4%, 0%, 44.3%)
CIE-LAB	lab(25.02, 35.59, -53.45)
CIE-LCH	lch(25.02, 64.22, 303.66°)
OKLab	oklab(36.88% 0.0309 -0.154)
OKLCH	oklch(36.88% 0.157 281.3)
XYZ	xyz(7.2845, 4.4206, 26.0553)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A8E #818E2A

analogous

#2A4F8E #372A8E #692A8E

triadic

#372A8E #8E372A #2A8E37

tetradic

#372A8E #8E2A4F #818E2A #2A8E69

square

#372A8E #8E2A4F #818E2A #2A8E69

split-complementary

#372A8E #8E692A #4F8E2A

monochromatic

#120E30 #251C5F #372A8E #4938BD #7062D1

Accessibility & contrast

On white

11.15

#372A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#372A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A8E

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A8E	#FFFFFF	#000000	##FFFFFF
##372A8E	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #372a8e;
/* rgb */ color: rgb(55, 42, 142);
/* oklch */ color: oklch(36.9% 0.157 281.3);

Tailwind

colors: {
  custom: {
    50: '#7865b0',
    500: '#372a8e',
    950: '#000000',
  },
}

SCSS

$custom: #372a8e;
$custom-light: #7865b0;
$custom-dark: #000000;

JSON

{
  "hex": "#372a8e",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 142
  },
  "hsl": {
    "h": 247.8,
    "s": 54.348,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36883,
    "c": 0.15704,
    "h": 281.3
  },
  "luminance": 0.04421
}

Semantic roles & 50–950 ramp

primary

#372A8E

secondary

#ABB65D

accent

#DE4ACB

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #372A8E

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

Preview Lab → · Contrast checker → · Palette generator →