#3F188E#3F188E

#3F188E is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.3% C 0.175 H 288.9°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F188E
RGB	rgb(63, 24, 142)
HSL	hsl(260, 71%, 33%)
HSV	hsv(260, 83%, 56%)
CMYK	cmyk(55.6%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(22.52, 46.07, -57.52)
CIE-LCH	lch(22.52, 73.70, 308.70°)
OKLab	oklab(35.32% 0.0568 -0.1655)
OKLCH	oklch(35.32% 0.175 288.9)
XYZ	xyz(7.2576, 3.6627, 25.9105)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F188E #678E18

analogous

#182C8E #3F188E #7A188E

triadic

#3F188E #8E3F18 #188E3F

tetradic

#3F188E #8E182C #678E18 #188E7A

square

#3F188E #8E182C #678E18 #188E7A

split-complementary

#3F188E #8E7A18 #2C8E18

monochromatic

#110625 #280F5A #3F188E #5621C2 #7641DF

Accessibility & contrast

On white

12.12

#3F188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#3F188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F188E

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F188E	#FFFFFF	#000000	##FFFFFF
##3F188E	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#1F3C54

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #3f188e;
/* rgb */ color: rgb(63, 24, 142);
/* oklch */ color: oklch(35.3% 0.175 288.9);

Tailwind

colors: {
  custom: {
    50: '#7e5bb0',
    500: '#3f188e',
    950: '#000000',
  },
}

SCSS

$custom: #3f188e;
$custom-light: #7e5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f188e",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 259.831,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35321,
    "c": 0.17496,
    "h": 288.9
  },
  "luminance": 0.03663
}

Semantic roles & 50–950 ramp

primary

#3F188E

secondary

#96C042

accent

#EE3AB2

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #3F188E

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

Preview Lab → · Contrast checker → · Palette generator →