#371B8B#371B8B

#371B8B is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.5% C 0.169 H 284.7°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#371B8B
RGB	rgb(55, 27, 139)
HSL	hsl(255, 67%, 33%)
HSV	hsv(255, 81%, 55%)
CMYK	cmyk(60.4%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(21.80, 42.86, -56.87)
CIE-LCH	lch(21.80, 71.21, 307.00°)
OKLab	oklab(34.52% 0.0429 -0.1639)
OKLCH	oklch(34.52% 0.169 284.7)
XYZ	xyz(6.6263, 3.4598, 24.7397)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B8B #6F8B1B

analogous

#1B378B #371B8B #6F1B8B

triadic

#371B8B #8B371B #1B8B37

tetradic

#371B8B #8B1B37 #6F8B1B #1B8B6F

square

#371B8B #8B1B37 #6F8B1B #1B8B6F

split-complementary

#371B8B #8B6F1B #378B1B

monochromatic

#0E0725 #231158 #371B8B #4B25BE #6B45DB

Accessibility & contrast

On white

12.41

#371B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#371B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B8B

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B8B	#FFFFFF	#000000	##FFFFFF
##371B8B	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#033C53

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #371b8b;
/* rgb */ color: rgb(55, 27, 139);
/* oklch */ color: oklch(34.5% 0.169 284.7);

Tailwind

colors: {
  custom: {
    50: '#795cae',
    500: '#371b8b',
    950: '#000000',
  },
}

SCSS

$custom: #371b8b;
$custom-light: #795cae;
$custom-dark: #000000;

JSON

{
  "hex": "#371b8b",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 255,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34518,
    "c": 0.16942,
    "h": 284.7
  },
  "luminance": 0.0346
}

Semantic roles & 50–950 ramp

primary

#371B8B

secondary

#9FBC45

accent

#EA3DBF

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #371B8B

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

Preview Lab → · Contrast checker → · Palette generator →