#3F188D#3F188D

#3F188D is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.2% C 0.174 H 289.2°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F188D
RGB	rgb(63, 24, 141)
HSL	hsl(260, 71%, 32%)
HSV	hsv(260, 83%, 55%)
CMYK	cmyk(55.3%, 83%, 0%, 44.7%)
CIE-LAB	lab(22.42, 45.80, -57.07)
CIE-LCH	lch(22.42, 73.17, 308.75°)
OKLab	oklab(35.22% 0.0571 -0.1642)
OKLCH	oklch(35.22% 0.174 289.2)
XYZ	xyz(7.1828, 3.6328, 25.5169)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F188D #668D18

analogous

#182C8D #3F188D #7A188D

triadic

#3F188D #8D3F18 #188D3F

tetradic

#3F188D #8D182C #668D18 #188D7A

square

#3F188D #8D182C #668D18 #188D7A

split-complementary

#3F188D #8D7A18 #2C8D18

monochromatic

#100624 #280F59 #3F188D #5621C1 #7541DF

Accessibility & contrast

On white

12.16

#3F188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#3F188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F188D

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F188D	#FFFFFF	#000000	##FFFFFF
##3F188D	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#203B53

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #3f188d;
/* rgb */ color: rgb(63, 24, 141);
/* oklch */ color: oklch(35.2% 0.174 289.2);

Tailwind

colors: {
  custom: {
    50: '#7e5baf',
    500: '#3f188d',
    950: '#000000',
  },
}

SCSS

$custom: #3f188d;
$custom-light: #7e5baf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f188d",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 260,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35217,
    "c": 0.17383,
    "h": 289.2
  },
  "luminance": 0.03633
}

Semantic roles & 50–950 ramp

primary

#3F188D

secondary

#95BF42

accent

#EE3AB2

background

#F8F5FA

surface

#EFE9F5

border

#CAC5CF

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #3F188D

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

Preview Lab → · Contrast checker → · Palette generator →