#373EAC#373EAC

#373EAC is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.173 H 273.8°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#373EAC
RGB	rgb(55, 62, 172)
HSL	hsl(236, 52%, 45%)
HSV	hsv(236, 68%, 67%)
CMYK	cmyk(68%, 64%, 0%, 32.5%)
CIE-LAB	lab(32.34, 33.40, -59.72)
CIE-LCH	lch(32.34, 68.43, 299.21°)
OKLab	oklab(43.02% 0.0113 -0.1723)
OKLCH	oklch(43.02% 0.173 273.8)
XYZ	xyz(10.7421, 7.2350, 39.8521)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373EAC #ACA537

analogous

#3779AC #373EAC #6A37AC

triadic

#373EAC #AC373E #3EAC37

tetradic

#373EAC #AC3779 #ACA537 #37AC6A

square

#373EAC #AC3779 #ACA537 #37AC6A

split-complementary

#373EAC #AC6A37 #79AC37

monochromatic

#191D4F #282D7E #373EAC #575EC9 #858AD8

Accessibility & contrast

On white

8.58

#373EAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#373EAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373EAC

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373EAC	#FFFFFF	#000000	##FFFFFF
##373EAC	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #373eac;
/* rgb */ color: rgb(55, 62, 172);
/* oklch */ color: oklch(43.0% 0.173 273.8);

Tailwind

colors: {
  custom: {
    50: '#7d73c6',
    500: '#373eac',
    950: '#000000',
  },
}

SCSS

$custom: #373eac;
$custom-light: #7d73c6;
$custom-dark: #000000;

JSON

{
  "hex": "#373eac",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 172
  },
  "hsl": {
    "h": 236.41,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.4302,
    "c": 0.17269,
    "h": 273.8
  },
  "luminance": 0.07236
}

Semantic roles & 50–950 ramp

primary

#373EAC

secondary

#C2BE7D

accent

#D24DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #373EAC

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

Preview Lab → · Contrast checker → · Palette generator →