#373ABD#373ABD

#373ABD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.9% C 0.199 H 273.6°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#373ABD
RGB	rgb(55, 58, 189)
HSL	hsl(239, 55%, 48%)
HSV	hsv(239, 71%, 74%)
CMYK	cmyk(70.9%, 69.3%, 0%, 25.9%)
CIE-LAB	lab(32.94, 41.74, -68.81)
CIE-LCH	lch(32.94, 80.48, 301.24°)
OKLab	oklab(43.93% 0.0124 -0.1989)
OKLCH	oklch(43.93% 0.199 273.6)
XYZ	xyz(12.2708, 7.5113, 48.9374)
Luminance	0.0751 (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

#373ABD #BDBA37

analogous

#377DBD #373ABD #7737BD

triadic

#373ABD #BD373A #3ABD37

tetradic

#373ABD #BD377D #BDBA37 #37BD77

square

#373ABD #BD377D #BDBA37 #37BD77

split-complementary

#373ABD #BD7737 #7DBD37

monochromatic

#1B1D5E #292B8E #373ABD #6063D1 #9092DF

Accessibility & contrast

On white

8.39

#373ABD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#373ABD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373ABD

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373ABD	#FFFFFF	#000000	##FFFFFF
##373ABD	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0047BB

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #373abd;
/* rgb */ color: rgb(55, 58, 189);
/* oklch */ color: oklch(43.9% 0.199 273.6);

Tailwind

colors: {
  custom: {
    50: '#8171d2',
    500: '#373abd',
    950: '#000000',
  },
}

SCSS

$custom: #373abd;
$custom-light: #8171d2;
$custom-dark: #000000;

JSON

{
  "hex": "#373abd",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 189
  },
  "hsl": {
    "h": 238.657,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4393,
    "c": 0.19933,
    "h": 273.6
  },
  "luminance": 0.07512
}

Semantic roles & 50–950 ramp

primary

#373ABD

secondary

#C9C886

accent

#DB4ADE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373ABD

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

Preview Lab → · Contrast checker → · Palette generator →