#372B9B#372B9B

#372B9B is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.3% C 0.173 H 279.2°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#372B9B
RGB	rgb(55, 43, 155)
HSL	hsl(246, 57%, 39%)
HSV	hsv(246, 72%, 61%)
CMYK	cmyk(64.5%, 72.3%, 0%, 39.2%)
CIE-LAB	lab(26.46, 39.27, -59.08)
CIE-LCH	lch(26.46, 70.94, 303.61°)
OKLab	oklab(38.3% 0.0277 -0.1704)
OKLCH	oklch(38.3% 0.173 279.2)
XYZ	xyz(8.3539, 4.9059, 31.5107)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372B9B #8F9B2B

analogous

#2B579B #372B9B #6F2B9B

triadic

#372B9B #9B372B #2B9B37

tetradic

#372B9B #9B2B57 #8F9B2B #2B9B6F

square

#372B9B #9B2B57 #8F9B2B #2B9B6F

split-complementary

#372B9B #9B6F2B #579B2B

monochromatic

#15103B #261E6B #372B9B #4A3BC9 #766BD6

Accessibility & contrast

On white

10.60

#372B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#372B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372B9B

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372B9B	#FFFFFF	#000000	##FFFFFF
##372B9B	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004A60

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #372b9b;
/* rgb */ color: rgb(55, 43, 155);
/* oklch */ color: oklch(38.3% 0.173 279.2);

Tailwind

colors: {
  custom: {
    50: '#7b66ba',
    500: '#372b9b',
    950: '#000000',
  },
}

SCSS

$custom: #372b9b;
$custom-light: #7b66ba;
$custom-dark: #000000;

JSON

{
  "hex": "#372b9b",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 155
  },
  "hsl": {
    "h": 246.429,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38297,
    "c": 0.17269,
    "h": 279.2
  },
  "luminance": 0.04907
}

Semantic roles & 50–950 ramp

primary

#372B9B

secondary

#B3BC65

accent

#E048D0

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #372B9B

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

Preview Lab → · Contrast checker → · Palette generator →