#373389#373389

#373389 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.139 H 279.6°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#373389
RGB	rgb(55, 51, 137)
HSL	hsl(243, 46%, 37%)
HSV	hsv(243, 63%, 54%)
CMYK	cmyk(59.9%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(26.69, 28.25, -47.61)
CIE-LCH	lch(26.69, 55.36, 300.69°)
OKLab	oklab(37.97% 0.0231 -0.1368)
OKLCH	oklch(37.97% 0.139 279.6)
XYZ	xyz(7.2733, 4.9855, 24.2411)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373389 #858933

analogous

#335A89 #373389 #623389

triadic

#373389 #893733 #338937

tetradic

#373389 #89335A #858933 #338962

square

#373389 #89335A #858933 #338962

split-complementary

#373389 #896233 #5A8933

monochromatic

#131230 #25225C #373389 #4944B6 #726EC9

Accessibility & contrast

On white

10.51

#373389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#373389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373389

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373389	#FFFFFF	#000000	##FFFFFF
##373389	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428C

Deuteranopia (green-blind)

#003C87

Tritanopia (blue-blind)

#024859

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #373389;
/* rgb */ color: rgb(55, 51, 137);
/* oklch */ color: oklch(38.0% 0.139 279.6);

Tailwind

colors: {
  custom: {
    50: '#776bac',
    500: '#373389',
    950: '#000000',
  },
}

SCSS

$custom: #373389;
$custom-light: #776bac;
$custom-dark: #000000;

JSON

{
  "hex": "#373389",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 242.791,
    "s": 45.745,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37966,
    "c": 0.13874,
    "h": 279.6
  },
  "luminance": 0.04986
}

Semantic roles & 50–950 ramp

primary

#373389

secondary

#ADB167

accent

#D552CF

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #373389

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

Preview Lab → · Contrast checker → · Palette generator →