#373BC1#373BC1

#373BC1 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.5% C 0.203 H 273.2°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#373BC1
RGB	rgb(55, 59, 193)
HSL	hsl(238, 56%, 49%)
HSV	hsv(238, 72%, 76%)
CMYK	cmyk(71.5%, 69.4%, 0%, 24.3%)
CIE-LAB	lab(33.54, 42.50, -70.19)
CIE-LCH	lch(33.54, 82.05, 301.20°)
OKLab	oklab(44.47% 0.0113 -0.2029)
OKLCH	oklch(44.47% 0.203 273.2)
XYZ	xyz(12.7619, 7.7891, 51.2726)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.91

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373BC1 #C1BD37

analogous

#3780C1 #373BC1 #7837C1

triadic

#373BC1 #C1373B #3BC137

tetradic

#373BC1 #C13780 #C1BD37 #37C178

square

#373BC1 #C13780 #C1BD37 #37C178

split-complementary

#373BC1 #C17837 #80C137

monochromatic

#1C1E62 #292C91 #373BC1 #6366D2 #9295E0

Accessibility & contrast

On white

8.21

#373BC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#373BC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BC1

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BC1	#FFFFFF	#000000	##FFFFFF
##373BC1	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #373bc1;
/* rgb */ color: rgb(55, 59, 193);
/* oklch */ color: oklch(44.5% 0.203 273.2);

Tailwind

colors: {
  custom: {
    50: '#8272d5',
    500: '#373bc1',
    950: '#000000',
  },
}

SCSS

$custom: #373bc1;
$custom-light: #8272d5;
$custom-dark: #000000;

JSON

{
  "hex": "#373bc1",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 193
  },
  "hsl": {
    "h": 238.261,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44475,
    "c": 0.20325,
    "h": 273.2
  },
  "luminance": 0.0779
}

Semantic roles & 50–950 ramp

primary

#373BC1

secondary

#CBC989

accent

#DB49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373BC1

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

Preview Lab → · Contrast checker → · Palette generator →