#372A9A#372A9A

#372A9A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.0% C 0.173 H 279.6°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#372A9A
RGB	rgb(55, 42, 154)
HSL	hsl(247, 57%, 38%)
HSV	hsv(247, 73%, 60%)
CMYK	cmyk(64.3%, 72.7%, 0%, 39.6%)
CIE-LAB	lab(26.16, 39.52, -58.97)
CIE-LCH	lch(26.16, 70.99, 303.83°)
OKLab	oklab(38.05% 0.0287 -0.1701)
OKLCH	oklch(38.05% 0.173 279.6)
XYZ	xyz(8.2344, 4.8006, 31.0583)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A9A #8D9A2A

analogous

#2A559A #372A9A #6F2A9A

triadic

#372A9A #9A372A #2A9A37

tetradic

#372A9A #9A2A55 #8D9A2A #2A9A6F

square

#372A9A #9A2A55 #8D9A2A #2A9A6F

split-complementary

#372A9A #9A6F2A #559A2A

monochromatic

#15103A #261D6A #372A9A #4938C9 #7568D6

Accessibility & contrast

On white

10.71

#372A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#372A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A9A

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A9A	#FFFFFF	#000000	##FFFFFF
##372A9A	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429D

Deuteranopia (green-blind)

#003998

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #372a9a;
/* rgb */ color: rgb(55, 42, 154);
/* oklch */ color: oklch(38.0% 0.173 279.6);

Tailwind

colors: {
  custom: {
    50: '#7b65b9',
    500: '#372a9a',
    950: '#000000',
  },
}

SCSS

$custom: #372a9a;
$custom-light: #7b65b9;
$custom-dark: #000000;

JSON

{
  "hex": "#372a9a",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 154
  },
  "hsl": {
    "h": 246.964,
    "s": 57.143,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38049,
    "c": 0.17253,
    "h": 279.6
  },
  "luminance": 0.04801
}

Semantic roles & 50–950 ramp

primary

#372A9A

secondary

#B2BC63

accent

#E047CF

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #372A9A

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

Preview Lab → · Contrast checker → · Palette generator →