#373BC6#373BC6

#373BC6 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 45.0% C 0.209 H 272.9°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#373BC6
RGB	rgb(55, 59, 198)
HSL	hsl(238, 57%, 50%)
HSV	hsv(238, 72%, 78%)
CMYK	cmyk(72.2%, 70.2%, 0%, 22.4%)
CIE-LAB	lab(34.02, 44.18, -72.33)
CIE-LCH	lch(34.02, 84.76, 301.42°)
OKLab	oklab(44.96% 0.0106 -0.2092)
OKLCH	oklch(44.96% 0.209 272.9)
XYZ	xyz(13.3291, 8.0160, 54.2599)
Luminance	0.0802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.90

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373BC6 #C6C237

analogous

#3782C6 #373BC6 #7B37C6

triadic

#373BC6 #C6373B #3BC637

tetradic

#373BC6 #C63782 #C6C237 #37C67B

square

#373BC6 #C63782 #C6C237 #37C67B

split-complementary

#373BC6 #C67B37 #82C637

monochromatic

#1C1E66 #2A2D96 #373BC6 #6669D4 #9698E2

Accessibility & contrast

On white

8.07

#373BC6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#373BC6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BC6

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BC6	#FFFFFF	#000000	##FFFFFF
##373BC6	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CA

Deuteranopia (green-blind)

#0049C3

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373bc6;
/* rgb */ color: rgb(55, 59, 198);
/* oklch */ color: oklch(45.0% 0.209 272.9);

Tailwind

colors: {
  custom: {
    50: '#8372d9',
    500: '#373bc6',
    950: '#000000',
  },
}

SCSS

$custom: #373bc6;
$custom-light: #8372d9;
$custom-dark: #000000;

JSON

{
  "hex": "#373bc6",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 198
  },
  "hsl": {
    "h": 238.322,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44961,
    "c": 0.20947,
    "h": 272.9
  },
  "luminance": 0.08017
}

Semantic roles & 50–950 ramp

primary

#373BC6

secondary

#CDCB8C

accent

#DC48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373BC6

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

Preview Lab → · Contrast checker → · Palette generator →