#372D8B#372D8B

#372D8B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.149 H 281.1°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#372D8B
RGB	rgb(55, 45, 139)
HSL	hsl(246, 51%, 36%)
HSV	hsv(246, 68%, 55%)
CMYK	cmyk(60.4%, 67.6%, 0%, 45.5%)
CIE-LAB	lab(25.42, 32.76, -50.93)
CIE-LCH	lch(25.42, 60.55, 302.75°)
OKLab	oklab(37.09% 0.0286 -0.1466)
OKLCH	oklch(37.09% 0.149 281.1)
XYZ	xyz(7.1727, 4.5526, 24.9219)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372D8B #818B2D

analogous

#2D528B #372D8B #662D8B

triadic

#372D8B #8B372D #2D8B37

tetradic

#372D8B #8B2D52 #818B2D #2D8B66

square

#372D8B #8B2D52 #818B2D #2D8B66

split-complementary

#372D8B #8B662D #528B2D

monochromatic

#120F2F #251E5D #372D8B #493CB9 #7065CD

Accessibility & contrast

On white

10.99

#372D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#372D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372D8B

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372D8B	#FFFFFF	#000000	##FFFFFF
##372D8B	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #372d8b;
/* rgb */ color: rgb(55, 45, 139);
/* oklch */ color: oklch(37.1% 0.149 281.1);

Tailwind

colors: {
  custom: {
    50: '#7867ae',
    500: '#372d8b',
    950: '#000000',
  },
}

SCSS

$custom: #372d8b;
$custom-light: #7867ae;
$custom-dark: #000000;

JSON

{
  "hex": "#372d8b",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 139
  },
  "hsl": {
    "h": 246.383,
    "s": 51.087,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37091,
    "c": 0.14935,
    "h": 281.1
  },
  "luminance": 0.04553
}

Semantic roles & 50–950 ramp

primary

#372D8B

secondary

#ABB460

accent

#DB4DCC

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #372D8B

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

Preview Lab → · Contrast checker → · Palette generator →