#371B8E#371B8E

#371B8E is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.8% C 0.173 H 284.0°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#371B8E
RGB	rgb(55, 27, 142)
HSL	hsl(255, 68%, 33%)
HSV	hsv(255, 81%, 56%)
CMYK	cmyk(61.3%, 81%, 0%, 44.3%)
CIE-LAB	lab(22.12, 43.75, -58.21)
CIE-LCH	lch(22.12, 72.82, 306.93°)
OKLab	oklab(34.84% 0.042 -0.1678)
OKLCH	oklch(34.84% 0.173 284)
XYZ	xyz(6.8485, 3.5486, 25.9100)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B8E #728E1B

analogous

#1B388E #371B8E #701B8E

triadic

#371B8E #8E371B #1B8E37

tetradic

#371B8E #8E1B38 #728E1B #1B8E70

square

#371B8E #8E1B38 #728E1B #1B8E70

split-complementary

#371B8E #8E701B #388E1B

monochromatic

#0F0727 #23115B #371B8E #4B25C1 #6C47DC

Accessibility & contrast

On white

12.28

#371B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#371B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B8E

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B8E	#FFFFFF	#000000	##FFFFFF
##371B8E	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00318C

Tritanopia (blue-blind)

#003D55

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #371b8e;
/* rgb */ color: rgb(55, 27, 142);
/* oklch */ color: oklch(34.8% 0.173 284.0);

Tailwind

colors: {
  custom: {
    50: '#7a5cb0',
    500: '#371b8e',
    950: '#000000',
  },
}

SCSS

$custom: #371b8e;
$custom-light: #7a5cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#371b8e",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 254.609,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34837,
    "c": 0.17298,
    "h": 284
  },
  "luminance": 0.03549
}

Semantic roles & 50–950 ramp

primary

#371B8E

secondary

#A1BE47

accent

#EB3DC1

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #371B8E

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

Preview Lab → · Contrast checker → · Palette generator →