#373BA2#373BA2

#373BA2 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.163 H 275.0°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#373BA2
RGB	rgb(55, 59, 162)
HSL	hsl(238, 49%, 43%)
HSV	hsv(238, 66%, 64%)
CMYK	cmyk(66%, 63.6%, 0%, 36.5%)
CIE-LAB	lab(30.75, 31.80, -56.30)
CIE-LCH	lch(30.75, 64.66, 299.46°)
OKLab	oklab(41.6% 0.0143 -0.1623)
OKLCH	oklch(41.6% 0.163 275)
XYZ	xyz(9.6590, 6.5480, 34.9303)
Luminance	0.0655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373BA2 #A29E37

analogous

#3770A2 #373BA2 #6837A2

triadic

#373BA2 #A2373B #3BA237

tetradic

#373BA2 #A23770 #A29E37 #37A268

square

#373BA2 #A23770 #A29E37 #37A268

split-complementary

#373BA2 #A26837 #70A237

monochromatic

#181A47 #272A74 #373BA2 #5256C4 #8083D4

Accessibility & contrast

On white

9.09

#373BA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#373BA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BA2

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BA2	#FFFFFF	#000000	##FFFFFF
##373BA2	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA5

Deuteranopia (green-blind)

#0044A0

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #373ba2;
/* rgb */ color: rgb(55, 59, 162);
/* oklch */ color: oklch(41.6% 0.163 275.0);

Tailwind

colors: {
  custom: {
    50: '#7b71be',
    500: '#373ba2',
    950: '#000000',
  },
}

SCSS

$custom: #373ba2;
$custom-light: #7b71be;
$custom-dark: #000000;

JSON

{
  "hex": "#373ba2",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 162
  },
  "hsl": {
    "h": 237.757,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41597,
    "c": 0.16292,
    "h": 275
  },
  "luminance": 0.06549
}

Semantic roles & 50–950 ramp

primary

#373BA2

secondary

#BDBB78

accent

#D44FD9

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #373BA2

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

Preview Lab → · Contrast checker → · Palette generator →