#371E78#371E78

#371E78 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.143 H 288.7°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#371E78
RGB	rgb(55, 30, 120)
HSL	hsl(257, 60%, 29%)
HSV	hsv(257, 75%, 47%)
CMYK	cmyk(54.2%, 75%, 0%, 52.9%)
CIE-LAB	lab(20.43, 35.55, -47.12)
CIE-LCH	lch(20.43, 59.02, 307.03°)
OKLab	oklab(32.97% 0.0459 -0.1354)
OKLCH	oklch(32.97% 0.143 288.7)
XYZ	xyz(5.4290, 3.0966, 18.0773)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371E78 #5F781E

analogous

#1E3278 #371E78 #641E78

triadic

#371E78 #78371E #1E7837

tetradic

#371E78 #781E32 #5F781E #1E7864

square

#371E78 #781E32 #5F781E #1E7864

split-complementary

#371E78 #78641E #32781E

monochromatic

#0B0618 #211247 #371E78 #4D2AA9 #6941CF

Accessibility & contrast

On white

12.97

#371E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#371E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371E78

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371E78	#FFFFFF	#000000	##FFFFFF
##371E78	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#002F76

Tritanopia (blue-blind)

#1F3649

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #371e78;
/* rgb */ color: rgb(55, 30, 120);
/* oklch */ color: oklch(33.0% 0.143 288.7);

Tailwind

colors: {
  custom: {
    50: '#755ca0',
    500: '#371e78',
    950: '#000000',
  },
}

SCSS

$custom: #371e78;
$custom-light: #755ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#371e78",
  "rgb": {
    "r": 55,
    "g": 30,
    "b": 120
  },
  "hsl": {
    "h": 256.667,
    "s": 60,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32974,
    "c": 0.14295,
    "h": 288.7
  },
  "luminance": 0.03097
}

Semantic roles & 50–950 ramp

primary

#371E78

secondary

#8FAC46

accent

#E345B7

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #371E78

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

Preview Lab → · Contrast checker → · Palette generator →