#373BC5#373BC5

#373BC5 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.9% C 0.208 H 273.0°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#373BC5
RGB	rgb(55, 59, 197)
HSL	hsl(238, 56%, 49%)
HSV	hsv(238, 72%, 77%)
CMYK	cmyk(72.1%, 70.1%, 0%, 22.7%)
CIE-LAB	lab(33.92, 43.85, -71.90)
CIE-LCH	lch(33.92, 84.22, 301.38°)
OKLab	oklab(44.86% 0.0108 -0.208)
OKLCH	oklch(44.86% 0.208 273)
XYZ	xyz(13.2142, 7.9700, 53.6545)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.89

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373BC5 #C5C137

analogous

#3782C5 #373BC5 #7A37C5

triadic

#373BC5 #C5373B #3BC537

tetradic

#373BC5 #C53782 #C5C137 #37C57A

square

#373BC5 #C53782 #C5C137 #37C57A

split-complementary

#373BC5 #C57A37 #82C537

monochromatic

#1C1E65 #2A2D95 #373BC5 #6568D4 #9597E1

Accessibility & contrast

On white

8.09

#373BC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#373BC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BC5

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BC5	#FFFFFF	#000000	##FFFFFF
##373BC5	1.00	8.09	2.59	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#0049C2

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373bc5;
/* rgb */ color: rgb(55, 59, 197);
/* oklch */ color: oklch(44.9% 0.208 273.0);

Tailwind

colors: {
  custom: {
    50: '#8372d8',
    500: '#373bc5',
    950: '#000000',
  },
}

SCSS

$custom: #373bc5;
$custom-light: #8372d8;
$custom-dark: #000000;

JSON

{
  "hex": "#373bc5",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 197
  },
  "hsl": {
    "h": 238.31,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.44863,
    "c": 0.20824,
    "h": 273
  },
  "luminance": 0.07971
}

Semantic roles & 50–950 ramp

primary

#373BC5

secondary

#CDCB8B

accent

#DB48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373BC5

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

Preview Lab → · Contrast checker → · Palette generator →