#371CB4#371CB4

#371CB4 is a dark, highly saturated violet. Relative luminance 0.049; OKLCH L 39.2% C 0.216 H 277.7°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#371CB4
RGB	rgb(55, 28, 180)
HSL	hsl(251, 73%, 41%)
HSV	hsv(251, 84%, 71%)
CMYK	cmyk(69.4%, 84.4%, 0%, 29.4%)
CIE-LAB	lab(26.55, 54.38, -74.03)
CIE-LCH	lch(26.55, 91.86, 306.30°)
OKLab	oklab(39.15% 0.0291 -0.2138)
OKLCH	oklch(39.15% 0.216 277.7)
XYZ	xyz(10.2264, 4.9371, 43.5852)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371CB4 #99B41C

analogous

#1C4DB4 #371CB4 #831CB4

triadic

#371CB4 #B4371C #1CB437

tetradic

#371CB4 #B41C4D #99B41C #1CB483

square

#371CB4 #B41C4D #99B41C #1CB483

split-complementary

#371CB4 #B4831C #4DB41C

monochromatic

#170C4A #27147F #371CB4 #4E2FDF #7B64E7

Accessibility & contrast

On white

10.57

#371CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#371CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371CB4

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371CB4	#FFFFFF	#000000	##FFFFFF
##371CB4	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B8

Deuteranopia (green-blind)

#0038B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #371cb4;
/* rgb */ color: rgb(55, 28, 180);
/* oklch */ color: oklch(39.2% 0.216 277.7);

Tailwind

colors: {
  custom: {
    50: '#815fcc',
    500: '#371cb4',
    950: '#000000',
  },
}

SCSS

$custom: #371cb4;
$custom-light: #815fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#371cb4",
  "rgb": {
    "r": 55,
    "g": 28,
    "b": 180
  },
  "hsl": {
    "h": 250.658,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39152,
    "c": 0.21578,
    "h": 277.7
  },
  "luminance": 0.04938
}

Semantic roles & 50–950 ramp

primary

#371CB4

secondary

#B9CC60

accent

#F038CF

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #371CB4

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

Preview Lab → · Contrast checker → · Palette generator →