#372A99#372A99

#372A99 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.0% C 0.171 H 279.7°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#372A99
RGB	rgb(55, 42, 153)
HSL	hsl(247, 57%, 38%)
HSV	hsv(247, 73%, 60%)
CMYK	cmyk(64.1%, 72.5%, 0%, 40%)
CIE-LAB	lab(26.06, 39.20, -58.51)
CIE-LCH	lch(26.06, 70.43, 303.82°)
OKLab	oklab(37.95% 0.0289 -0.1688)
OKLCH	oklch(37.95% 0.171 279.7)
XYZ	xyz(8.1515, 4.7674, 30.6215)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A99 #8C992A

analogous

#2A5499 #372A99 #6E2A99

triadic

#372A99 #99372A #2A9937

tetradic

#372A99 #992A54 #8C992A #2A996E

square

#372A99 #992A54 #8C992A #2A996E

split-complementary

#372A99 #996E2A #54992A

monochromatic

#141039 #261D69 #372A99 #4938C8 #7568D6

Accessibility & contrast

On white

10.75

#372A99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#372A99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A99

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A99	#FFFFFF	#000000	##FFFFFF
##372A99	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429C

Deuteranopia (green-blind)

#003997

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #372a99;
/* rgb */ color: rgb(55, 42, 153);
/* oklch */ color: oklch(38.0% 0.171 279.7);

Tailwind

colors: {
  custom: {
    50: '#7b65b8',
    500: '#372a99',
    950: '#000000',
  },
}

SCSS

$custom: #372a99;
$custom-light: #7b65b8;
$custom-dark: #000000;

JSON

{
  "hex": "#372a99",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 153
  },
  "hsl": {
    "h": 247.027,
    "s": 56.923,
    "l": 38.235
  },
  "oklch": {
    "l": 0.3795,
    "c": 0.17126,
    "h": 279.7
  },
  "luminance": 0.04768
}

Semantic roles & 50–950 ramp

primary

#372A99

secondary

#B1BC63

accent

#E048CE

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #372A99

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

Preview Lab → · Contrast checker → · Palette generator →