#372E9D#372E9D

#372E9D is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.0% C 0.172 H 278.4°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#372E9D
RGB	rgb(55, 46, 157)
HSL	hsl(245, 55%, 40%)
HSV	hsv(245, 71%, 62%)
CMYK	cmyk(65%, 70.7%, 0%, 38.4%)
CIE-LAB	lab(27.30, 38.16, -58.93)
CIE-LCH	lch(27.30, 70.21, 302.93°)
OKLab	oklab(38.95% 0.0252 -0.17)
OKLCH	oklch(38.95% 0.172 278.4)
XYZ	xyz(8.6364, 5.1998, 32.4403)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372E9D #949D2E

analogous

#2E5C9D #372E9D #6F2E9D

triadic

#372E9D #9D372E #2E9D37

tetradic

#372E9D #9D2E5C #949D2E #2E9D6F

square

#372E9D #9D2E5C #949D2E #2E9D6F

split-complementary

#372E9D #9D6F2E #5C9D2E

monochromatic

#16123E #26206E #372E9D #4C41C7 #7870D5

Accessibility & contrast

On white

10.29

#372E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#372E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372E9D

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372E9D	#FFFFFF	#000000	##FFFFFF
##372E9D	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A0

Deuteranopia (green-blind)

#003C9B

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372e9d;
/* rgb */ color: rgb(55, 46, 157);
/* oklch */ color: oklch(39.0% 0.172 278.4);

Tailwind

colors: {
  custom: {
    50: '#7b68bb',
    500: '#372e9d',
    950: '#000000',
  },
}

SCSS

$custom: #372e9d;
$custom-light: #7b68bb;
$custom-dark: #000000;

JSON

{
  "hex": "#372e9d",
  "rgb": {
    "r": 55,
    "g": 46,
    "b": 157
  },
  "hsl": {
    "h": 244.865,
    "s": 54.68,
    "l": 39.804
  },
  "oklch": {
    "l": 0.3895,
    "c": 0.17188,
    "h": 278.4
  },
  "luminance": 0.05201
}

Semantic roles & 50–950 ramp

primary

#372E9D

secondary

#B6BD6A

accent

#DE4AD2

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372E9D

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

Preview Lab → · Contrast checker → · Palette generator →