#372F71#372F71

#372F71 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 35.2% C 0.110 H 284.8°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#372F71
RGB	rgb(55, 47, 113)
HSL	hsl(247, 41%, 31%)
HSV	hsv(247, 58%, 44%)
CMYK	cmyk(51.3%, 58.4%, 0%, 55.7%)
CIE-LAB	lab(23.79, 22.71, -37.16)
CIE-LCH	lch(23.79, 43.55, 301.43°)
OKLab	oklab(35.23% 0.028 -0.1061)
OKLCH	oklch(35.23% 0.11 284.8)
XYZ	xyz(5.5718, 4.0372, 16.1053)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372F71 #69712F

analogous

#2F4871 #372F71 #582F71

triadic

#372F71 #71372F #2F7137

tetradic

#372F71 #712F48 #69712F #2F7158

square

#372F71 #712F48 #69712F #2F7158

split-complementary

#372F71 #71582F #48712F

monochromatic

#0D0B1B #221D46 #372F71 #4C419C #6A5EBC

Accessibility & contrast

On white

11.62

#372F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#372F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372F71

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372F71	#FFFFFF	#000000	##FFFFFF
##372F71	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063B73

Deuteranopia (green-blind)

#033770

Tritanopia (blue-blind)

#223E4B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #372f71;
/* rgb */ color: rgb(55, 47, 113);
/* oklch */ color: oklch(35.2% 0.110 284.8);

Tailwind

colors: {
  custom: {
    50: '#73679a',
    500: '#372f71',
    950: '#000000',
  },
}

SCSS

$custom: #372f71;
$custom-light: #73679a;
$custom-dark: #000000;

JSON

{
  "hex": "#372f71",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 113
  },
  "hsl": {
    "h": 247.273,
    "s": 41.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.35234,
    "c": 0.10974,
    "h": 284.8
  },
  "luminance": 0.04038
}

Semantic roles & 50–950 ramp

primary

#372F71

secondary

#99A25A

accent

#D157C2

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #372F71

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

Preview Lab → · Contrast checker → · Palette generator →