#371B8D#371B8D

#371B8D is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.7% C 0.172 H 284.3°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#371B8D
RGB	rgb(55, 27, 141)
HSL	hsl(255, 68%, 33%)
HSV	hsv(255, 81%, 55%)
CMYK	cmyk(61%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(22.01, 43.46, -57.77)
CIE-LCH	lch(22.01, 72.29, 306.95°)
OKLab	oklab(34.73% 0.0423 -0.1665)
OKLCH	oklch(34.73% 0.172 284.3)
XYZ	xyz(6.7737, 3.5187, 25.5164)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B8D #718D1B

analogous

#1B388D #371B8D #701B8D

triadic

#371B8D #8D371B #1B8D37

tetradic

#371B8D #8D1B38 #718D1B #1B8D70

square

#371B8D #8D1B38 #718D1B #1B8D70

split-complementary

#371B8D #8D701B #388D1B

monochromatic

#0F0726 #23115A #371B8D #4B25C0 #6B47DC

Accessibility & contrast

On white

12.33

#371B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#371B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B8D

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B8D	#FFFFFF	#000000	##FFFFFF
##371B8D	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #371b8d;
/* rgb */ color: rgb(55, 27, 141);
/* oklch */ color: oklch(34.7% 0.172 284.3);

Tailwind

colors: {
  custom: {
    50: '#795caf',
    500: '#371b8d',
    950: '#000000',
  },
}

SCSS

$custom: #371b8d;
$custom-light: #795caf;
$custom-dark: #000000;

JSON

{
  "hex": "#371b8d",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 254.737,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3473,
    "c": 0.1718,
    "h": 284.3
  },
  "luminance": 0.03519
}

Semantic roles & 50–950 ramp

primary

#371B8D

secondary

#A0BD46

accent

#EB3DC0

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #371B8D

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

Preview Lab → · Contrast checker → · Palette generator →