#371DB3#371DB3

#371DB3 is a dark, highly saturated violet. Relative luminance 0.049; OKLCH L 39.1% C 0.214 H 277.8°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#371DB3
RGB	rgb(55, 29, 179)
HSL	hsl(250, 72%, 41%)
HSV	hsv(250, 84%, 70%)
CMYK	cmyk(69.3%, 83.8%, 0%, 29.8%)
CIE-LAB	lab(26.58, 53.69, -73.39)
CIE-LCH	lch(26.58, 90.93, 306.19°)
OKLab	oklab(39.13% 0.029 -0.212)
OKLCH	oklch(39.13% 0.214 277.8)
XYZ	xyz(10.1490, 4.9447, 43.0587)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371DB3 #99B31D

analogous

#1D4EB3 #371DB3 #821DB3

triadic

#371DB3 #B3371D #1DB337

tetradic

#371DB3 #B31D4E #99B31D #1DB382

square

#371DB3 #B31D4E #99B31D #1DB382

split-complementary

#371DB3 #B3821D #4EB31D

monochromatic

#170C4A #27147E #371DB3 #4E30DD #7B64E6

Accessibility & contrast

On white

10.56

#371DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#371DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371DB3

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371DB3	#FFFFFF	#000000	##FFFFFF
##371DB3	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B7

Deuteranopia (green-blind)

#0039B0

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #371db3;
/* rgb */ color: rgb(55, 29, 179);
/* oklch */ color: oklch(39.1% 0.214 277.8);

Tailwind

colors: {
  custom: {
    50: '#8160cb',
    500: '#371db3',
    950: '#000000',
  },
}

SCSS

$custom: #371db3;
$custom-light: #8160cb;
$custom-dark: #000000;

JSON

{
  "hex": "#371db3",
  "rgb": {
    "r": 55,
    "g": 29,
    "b": 179
  },
  "hsl": {
    "h": 250.4,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39133,
    "c": 0.21398,
    "h": 277.8
  },
  "luminance": 0.04946
}

Semantic roles & 50–950 ramp

primary

#371DB3

secondary

#B9CB61

accent

#EF39CF

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #371DB3

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

Preview Lab → · Contrast checker → · Palette generator →