#3F289B#3F289B

#3F289B is a dark, vivid violet. Relative luminance 0.049; OKLCH L 38.5% C 0.175 H 283.7°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F289B
RGB	rgb(63, 40, 155)
HSL	hsl(252, 59%, 38%)
HSV	hsv(252, 74%, 61%)
CMYK	cmyk(59.4%, 74.2%, 0%, 39.2%)
CIE-LAB	lab(26.56, 42.07, -58.89)
CIE-LCH	lch(26.56, 72.37, 305.54°)
OKLab	oklab(38.54% 0.0415 -0.1696)
OKLCH	oklch(38.54% 0.175 283.7)
XYZ	xyz(8.7233, 4.9403, 31.4979)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F289B #849B28

analogous

#284A9B #3F289B #78289B

triadic

#3F289B #9B3F28 #289B3F

tetradic

#3F289B #9B284A #849B28 #289B78

square

#3F289B #9B284A #849B28 #289B78

split-complementary

#3F289B #9B7828 #4A9B28

monochromatic

#170F3A #2B1B6A #3F289B #5335CB #7D66D7

Accessibility & contrast

On white

10.56

#3F289B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#3F289B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F289B

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F289B	#FFFFFF	#000000	##FFFFFF
##3F289B	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)

#00429E

Deuteranopia (green-blind)

#003B99

Tritanopia (blue-blind)

#07485F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3f289b;
/* rgb */ color: rgb(63, 40, 155);
/* oklch */ color: oklch(38.5% 0.175 283.7);

Tailwind

colors: {
  custom: {
    50: '#7f65ba',
    500: '#3f289b',
    950: '#000000',
  },
}

SCSS

$custom: #3f289b;
$custom-light: #7f65ba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f289b",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 155
  },
  "hsl": {
    "h": 252,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.38543,
    "c": 0.17464,
    "h": 283.7
  },
  "luminance": 0.04941
}

Semantic roles & 50–950 ramp

primary

#3F289B

secondary

#ABBD61

accent

#E246C3

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3F289B

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

Preview Lab → · Contrast checker → · Palette generator →