#372B8F#372B8F

#372B8F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.157 H 280.9°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#372B8F
RGB	rgb(55, 43, 143)
HSL	hsl(247, 54%, 36%)
HSV	hsv(247, 70%, 56%)
CMYK	cmyk(61.5%, 69.9%, 0%, 43.9%)
CIE-LAB	lab(25.33, 35.32, -53.56)
CIE-LCH	lch(25.33, 64.16, 303.40°)
OKLab	oklab(37.14% 0.0298 -0.1543)
OKLCH	oklch(37.14% 0.157 280.9)
XYZ	xyz(7.3958, 4.5226, 26.4645)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372B8F #838F2B

analogous

#2B518F #372B8F #692B8F

triadic

#372B8F #8F372B #2B8F37

tetradic

#372B8F #8F2B51 #838F2B #2B8F69

square

#372B8F #8F2B51 #838F2B #2B8F69

split-complementary

#372B8F #8F692B #518F2B

monochromatic

#130F31 #251D60 #372B8F #4939BE #7164D0

Accessibility & contrast

On white

11.03

#372B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#372B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372B8F

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372B8F	#FFFFFF	#000000	##FFFFFF
##372B8F	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004559

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #372b8f;
/* rgb */ color: rgb(55, 43, 143);
/* oklch */ color: oklch(37.1% 0.157 280.9);

Tailwind

colors: {
  custom: {
    50: '#7865b1',
    500: '#372b8f',
    950: '#000000',
  },
}

SCSS

$custom: #372b8f;
$custom-light: #7865b1;
$custom-dark: #000000;

JSON

{
  "hex": "#372b8f",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 143
  },
  "hsl": {
    "h": 247.2,
    "s": 53.763,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37137,
    "c": 0.15716,
    "h": 280.9
  },
  "luminance": 0.04523
}

Semantic roles & 50–950 ramp

primary

#372B8F

secondary

#ACB75F

accent

#DD4BCC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #372B8F

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

Preview Lab → · Contrast checker → · Palette generator →