#373687#373687

#373687 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.4% C 0.132 H 278.7°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#373687
RGB	rgb(55, 54, 135)
HSL	hsl(241, 43%, 37%)
HSV	hsv(241, 60%, 53%)
CMYK	cmyk(59.3%, 60%, 0%, 47.1%)
CIE-LAB	lab(27.30, 25.59, -45.39)
CIE-LCH	lch(27.30, 52.10, 299.42°)
OKLab	oklab(38.36% 0.02 -0.1303)
OKLCH	oklch(38.36% 0.132 278.7)
XYZ	xyz(7.2665, 5.1993, 23.5376)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373687 #868736

analogous

#365E87 #373687 #603687

triadic

#373687 #873736 #368737

tetradic

#373687 #87365E #868736 #368760

square

#373687 #87365E #868736 #368760

split-complementary

#373687 #876036 #5E8736

monochromatic

#131330 #25255B #373687 #4947B3 #7271C6

Accessibility & contrast

On white

10.29

#373687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#373687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373687

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373687	#FFFFFF	#000000	##FFFFFF
##373687	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)

#00448A

Deuteranopia (green-blind)

#003D85

Tritanopia (blue-blind)

#064959

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #373687;
/* rgb */ color: rgb(55, 54, 135);
/* oklch */ color: oklch(38.4% 0.132 278.7);

Tailwind

colors: {
  custom: {
    50: '#766dab',
    500: '#373687',
    950: '#000000',
  },
}

SCSS

$custom: #373687;
$custom-light: #766dab;
$custom-dark: #000000;

JSON

{
  "hex": "#373687",
  "rgb": {
    "r": 55,
    "g": 54,
    "b": 135
  },
  "hsl": {
    "h": 240.741,
    "s": 42.857,
    "l": 37.059
  },
  "oklch": {
    "l": 0.38359,
    "c": 0.13179,
    "h": 278.7
  },
  "luminance": 0.052
}

Semantic roles & 50–950 ramp

primary

#373687

secondary

#AEAF6A

accent

#D355D1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #373687

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

Preview Lab → · Contrast checker → · Palette generator →