#373AC6#373AC6

#373AC6 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.8% C 0.211 H 273.0°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#373AC6
RGB	rgb(55, 58, 198)
HSL	hsl(239, 57%, 50%)
HSV	hsv(239, 72%, 78%)
CMYK	cmyk(72.2%, 70.7%, 0%, 22.4%)
CIE-LAB	lab(33.80, 44.77, -72.68)
CIE-LCH	lch(33.80, 85.36, 301.63°)
OKLab	oklab(44.81% 0.0112 -0.2102)
OKLCH	oklch(44.81% 0.211 273)
XYZ	xyz(13.2782, 7.9142, 54.2429)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.11

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373AC6 #C6C337

analogous

#3782C6 #373AC6 #7B37C6

triadic

#373AC6 #C6373A #3AC637

tetradic

#373AC6 #C63782 #C6C337 #37C67B

square

#373AC6 #C63782 #C6C337 #37C67B

split-complementary

#373AC6 #C67B37 #82C637

monochromatic

#1C1E66 #2A2C96 #373AC6 #6668D4 #9697E2

Accessibility & contrast

On white

8.13

#373AC6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#373AC6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373AC6

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373AC6	#FFFFFF	#000000	##FFFFFF
##373AC6	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CA

Deuteranopia (green-blind)

#0049C3

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #373ac6;
/* rgb */ color: rgb(55, 58, 198);
/* oklch */ color: oklch(44.8% 0.211 273.0);

Tailwind

colors: {
  custom: {
    50: '#8371d9',
    500: '#373ac6',
    950: '#000000',
  },
}

SCSS

$custom: #373ac6;
$custom-light: #8371d9;
$custom-dark: #000000;

JSON

{
  "hex": "#373ac6",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 198
  },
  "hsl": {
    "h": 238.741,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44809,
    "c": 0.21052,
    "h": 273
  },
  "luminance": 0.07916
}

Semantic roles & 50–950 ramp

primary

#373AC6

secondary

#CDCC8C

accent

#DD48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373AC6

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

Preview Lab → · Contrast checker → · Palette generator →