#373D97#373D97

#373D97 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.145 H 275.1°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#373D97
RGB	rgb(55, 61, 151)
HSL	hsl(236, 47%, 40%)
HSV	hsv(236, 64%, 59%)
CMYK	cmyk(63.6%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(30.36, 26.61, -50.27)
CIE-LCH	lch(30.36, 56.88, 297.90°)
OKLab	oklab(41.03% 0.0129 -0.1446)
OKLCH	oklch(41.03% 0.145 275.1)
XYZ	xyz(8.8284, 6.3834, 30.0390)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373D97 #979137

analogous

#376D97 #373D97 #613797

triadic

#373D97 #97373D #3D9737

tetradic

#373D97 #97376D #979137 #379761

square

#373D97 #97376D #979137 #379761

split-complementary

#373D97 #976137 #6D9737

monochromatic

#16193D #272B6A #373D97 #4D54BE #7A7FCF

Accessibility & contrast

On white

9.22

#373D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#373D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373D97

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373D97	#FFFFFF	#000000	##FFFFFF
##373D97	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004395

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #373d97;
/* rgb */ color: rgb(55, 61, 151);
/* oklch */ color: oklch(41.0% 0.145 275.1);

Tailwind

colors: {
  custom: {
    50: '#7972b6',
    500: '#373d97',
    950: '#000000',
  },
}

SCSS

$custom: #373d97;
$custom-light: #7972b6;
$custom-dark: #000000;

JSON

{
  "hex": "#373d97",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 236.25,
    "s": 46.602,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41025,
    "c": 0.14512,
    "h": 275.1
  },
  "luminance": 0.06384
}

Semantic roles & 50–950 ramp

primary

#373D97

secondary

#B8B372

accent

#CE52D6

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #373D97

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

Preview Lab → · Contrast checker → · Palette generator →