#373597#373597

#373597 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.6% C 0.155 H 277.5°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#373597
RGB	rgb(55, 53, 151)
HSL	hsl(241, 48%, 40%)
HSV	hsv(241, 65%, 59%)
CMYK	cmyk(63.6%, 64.9%, 0%, 40.8%)
CIE-LAB	lab(28.36, 31.80, -53.53)
CIE-LCH	lch(28.36, 62.26, 300.72°)
OKLab	oklab(39.55% 0.0202 -0.1542)
OKLCH	oklch(39.55% 0.156 277.5)
XYZ	xyz(8.4328, 5.5921, 29.9072)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373597 #959735

analogous

#356497 #373597 #683597

triadic

#373597 #973735 #359737

tetradic

#373597 #973564 #959735 #359768

square

#373597 #973564 #959735 #359768

split-complementary

#373597 #976835 #649735

monochromatic

#16153C #26256A #373597 #4C4ABF #7977CF

Accessibility & contrast

On white

9.91

#373597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#373597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373597

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373597	#FFFFFF	#000000	##FFFFFF
##373597	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479A

Deuteranopia (green-blind)

#003F95

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #373597;
/* rgb */ color: rgb(55, 53, 151);
/* oklch */ color: oklch(39.6% 0.155 277.5);

Tailwind

colors: {
  custom: {
    50: '#796cb6',
    500: '#373597',
    950: '#000000',
  },
}

SCSS

$custom: #373597;
$custom-light: #796cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#373597",
  "rgb": {
    "r": 55,
    "g": 53,
    "b": 151
  },
  "hsl": {
    "h": 241.224,
    "s": 48.039,
    "l": 40
  },
  "oklch": {
    "l": 0.39553,
    "c": 0.1555,
    "h": 277.5
  },
  "luminance": 0.05593
}

Semantic roles & 50–950 ramp

primary

#373597

secondary

#B6B870

accent

#D850D5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #373597

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

Preview Lab → · Contrast checker → · Palette generator →