#373299#373299

#373299 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.162 H 278.0°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#373299
RGB	rgb(55, 50, 153)
HSL	hsl(243, 51%, 40%)
HSV	hsv(243, 67%, 60%)
CMYK	cmyk(64.1%, 67.3%, 0%, 40%)
CIE-LAB	lab(27.83, 34.38, -55.62)
CIE-LCH	lch(27.83, 65.39, 301.72°)
OKLab	oklab(39.22% 0.0226 -0.1603)
OKLCH	oklch(39.22% 0.162 278)
XYZ	xyz(8.4641, 5.3927, 30.7257)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373299 #949932

analogous

#326099 #373299 #6B3299

triadic

#373299 #993732 #329937

tetradic

#373299 #993260 #949932 #32996B

square

#373299 #993260 #949932 #32996B

split-complementary

#373299 #996B32 #609932

monochromatic

#16143D #26236B #373299 #4C46C2 #7874D2

Accessibility & contrast

On white

10.10

#373299 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#373299 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373299

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373299	#FFFFFF	#000000	##FFFFFF
##373299	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469C

Deuteranopia (green-blind)

#003D97

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #373299;
/* rgb */ color: rgb(55, 50, 153);
/* oklch */ color: oklch(39.2% 0.162 278.0);

Tailwind

colors: {
  custom: {
    50: '#7a6ab8',
    500: '#373299',
    950: '#000000',
  },
}

SCSS

$custom: #373299;
$custom-light: #7a6ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#373299",
  "rgb": {
    "r": 55,
    "g": 50,
    "b": 153
  },
  "hsl": {
    "h": 242.913,
    "s": 50.739,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39218,
    "c": 0.16192,
    "h": 278
  },
  "luminance": 0.05393
}

Semantic roles & 50–950 ramp

primary

#373299

secondary

#B6BA6D

accent

#DA4ED3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #373299

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

Preview Lab → · Contrast checker → · Palette generator →