#40104B#40104B

#40104B is a dark, moderate purple. Relative luminance 0.020; OKLCH L 28.4% C 0.110 H 319.5°. Best body text is #FFFFFF at 15.07:1 contrast (WCAG AA passes).

Color values

HEX	#40104B
RGB	rgb(64, 16, 75)
HSL	hsl(289, 65%, 18%)
HSV	hsv(289, 79%, 29%)
CMYK	cmyk(14.7%, 78.7%, 0%, 70.6%)
CIE-LAB	lab(15.32, 32.43, -25.53)
CIE-LCH	lch(15.32, 41.27, 321.79°)
OKLab	oklab(28.42% 0.0837 -0.0715)
OKLCH	oklch(28.42% 0.11 319.5)
XYZ	xyz(3.5695, 1.9687, 6.8472)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40104B #1B4B10

analogous

#23104B #40104B #4B1038

triadic

#40104B #4B4010 #104B40

tetradic

#40104B #4B2310 #1B4B10 #10384B

square

#40104B #4B2310 #1B4B10 #10384B

split-complementary

#40104B #384B10 #104B23

monochromatic

#160519 #160519 #40104B #6B1B7D #9626B0

Accessibility & contrast

On white

15.07

#40104B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#40104B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40104B

15.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40104B	#FFFFFF	#000000	##FFFFFF
##40104B	1.00	15.07	1.39	15.07
#FFFFFF	15.07	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234D

Deuteranopia (green-blind)

#15284A

Tritanopia (blue-blind)

#401B2C

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #40104b;
/* rgb */ color: rgb(64, 16, 75);
/* oklch */ color: oklch(28.4% 0.110 319.5);

Tailwind

colors: {
  custom: {
    50: '#77537e',
    500: '#40104b',
    950: '#000000',
  },
}

SCSS

$custom: #40104b;
$custom-light: #77537e;
$custom-dark: #000000;

JSON

{
  "hex": "#40104b",
  "rgb": {
    "r": 64,
    "g": 16,
    "b": 75
  },
  "hsl": {
    "h": 288.814,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.28424,
    "c": 0.11008,
    "h": 319.5
  },
  "luminance": 0.01969
}

Semantic roles & 50–950 ramp

primary

#40104B

secondary

#418532

accent

#E8405F

background

#F7F4F7

surface

#EDE8EE

border

#C8C4C9

text

#09030A

muted

#7B787C

Preview Lab

Preview with #40104B

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

Preview Lab → · Contrast checker → · Palette generator →