#3F178D#3F178D

#3F178D is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.1% C 0.175 H 289.3°. Best body text is #FFFFFF at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#3F178D
RGB	rgb(63, 23, 141)
HSL	hsl(260, 72%, 32%)
HSV	hsv(260, 84%, 55%)
CMYK	cmyk(55.3%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(22.27, 46.22, -57.30)
CIE-LCH	lch(22.27, 73.62, 308.89°)
OKLab	oklab(35.12% 0.0578 -0.1648)
OKLCH	oklch(35.12% 0.175 289.3)
XYZ	xyz(7.1626, 3.5923, 25.5101)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F178D #658D17

analogous

#172A8D #3F178D #7A178D

triadic

#3F178D #8D3F17 #178D3F

tetradic

#3F178D #8D172A #658D17 #178D7A

square

#3F178D #8D172A #658D17 #178D7A

split-complementary

#3F178D #8D7A17 #2A8D17

monochromatic

#100624 #270E58 #3F178D #5720C2 #753FE0

Accessibility & contrast

On white

12.22

#3F178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#3F178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F178D

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F178D	#FFFFFF	#000000	##FFFFFF
##3F178D	1.00	12.22	1.72	12.22
#FFFFFF	12.22	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#203B53

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #3f178d;
/* rgb */ color: rgb(63, 23, 141);
/* oklch */ color: oklch(35.1% 0.175 289.3);

Tailwind

colors: {
  custom: {
    50: '#7e5baf',
    500: '#3f178d',
    950: '#000000',
  },
}

SCSS

$custom: #3f178d;
$custom-light: #7e5baf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f178d",
  "rgb": {
    "r": 63,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 260.339,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35119,
    "c": 0.17468,
    "h": 289.3
  },
  "luminance": 0.03593
}

Semantic roles & 50–950 ramp

primary

#3F178D

secondary

#95C040

accent

#EF39B1

background

#F8F5FA

surface

#EFE9F5

border

#CAC5CF

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #3F178D

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

Preview Lab → · Contrast checker → · Palette generator →