#371B77#371B77

#371B77 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.5% C 0.145 H 289.7°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#371B77
RGB	rgb(55, 27, 119)
HSL	hsl(258, 63%, 29%)
HSV	hsv(258, 77%, 47%)
CMYK	cmyk(53.8%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(19.75, 36.87, -47.58)
CIE-LCH	lch(19.75, 60.20, 307.77°)
OKLab	oklab(32.47% 0.0489 -0.1367)
OKLCH	oklch(32.47% 0.145 289.7)
XYZ	xyz(5.2963, 2.9278, 17.7352)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B77 #5B771B

analogous

#1B2D77 #371B77 #651B77

triadic

#371B77 #77371B #1B7737

tetradic

#371B77 #771B2D #5B771B #1B7765

square

#371B77 #771B2D #5B771B #1B7765

split-complementary

#371B77 #77651B #2D771B

monochromatic

#0C0619 #201045 #371B77 #4E26A9 #683AD2

Accessibility & contrast

On white

13.24

#371B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#371B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B77

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B77	#FFFFFF	#000000	##FFFFFF
##371B77	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317A

Deuteranopia (green-blind)

#002E75

Tritanopia (blue-blind)

#203447

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #371b77;
/* rgb */ color: rgb(55, 27, 119);
/* oklch */ color: oklch(32.5% 0.145 289.7);

Tailwind

colors: {
  custom: {
    50: '#755b9f',
    500: '#371b77',
    950: '#000000',
  },
}

SCSS

$custom: #371b77;
$custom-light: #755b9f;
$custom-dark: #000000;

JSON

{
  "hex": "#371b77",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 258.261,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32468,
    "c": 0.14519,
    "h": 289.7
  },
  "luminance": 0.02928
}

Semantic roles & 50–950 ramp

primary

#371B77

secondary

#8BAB42

accent

#E642B4

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #371B77

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

Preview Lab → · Contrast checker → · Palette generator →