#372A9B#372A9B

#372A9B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.1% C 0.174 H 279.4°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#372A9B
RGB	rgb(55, 42, 155)
HSL	hsl(247, 57%, 39%)
HSV	hsv(247, 73%, 61%)
CMYK	cmyk(64.5%, 72.9%, 0%, 39.2%)
CIE-LAB	lab(26.26, 39.85, -59.42)
CIE-LCH	lch(26.26, 71.54, 303.85°)
OKLab	oklab(38.15% 0.0285 -0.1714)
OKLCH	oklch(38.15% 0.174 279.4)
XYZ	xyz(8.3180, 4.8341, 31.4987)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372A9B #8E9B2A

analogous

#2A559B #372A9B #6F2A9B

triadic

#372A9B #9B372A #2A9B37

tetradic

#372A9B #9B2A55 #8E9B2A #2A9B6F

square

#372A9B #9B2A55 #8E9B2A #2A9B6F

split-complementary

#372A9B #9B6F2A #559B2A

monochromatic

#15103B #261D6B #372A9B #4939C9 #7669D6

Accessibility & contrast

On white

10.68

#372A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#372A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372A9B

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372A9B	#FFFFFF	#000000	##FFFFFF
##372A9B	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #372a9b;
/* rgb */ color: rgb(55, 42, 155);
/* oklch */ color: oklch(38.1% 0.174 279.4);

Tailwind

colors: {
  custom: {
    50: '#7b65ba',
    500: '#372a9b',
    950: '#000000',
  },
}

SCSS

$custom: #372a9b;
$custom-light: #7b65ba;
$custom-dark: #000000;

JSON

{
  "hex": "#372a9b",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 155
  },
  "hsl": {
    "h": 246.903,
    "s": 57.36,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38149,
    "c": 0.1738,
    "h": 279.4
  },
  "luminance": 0.04835
}

Semantic roles & 50–950 ramp

primary

#372A9B

secondary

#B3BD64

accent

#E147CF

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372A9B

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

Preview Lab → · Contrast checker → · Palette generator →