#40183C#40183C

#40183C is a dark, moderate purple. Relative luminance 0.021; OKLCH L 28.5% C 0.081 H 331.4°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#40183C
RGB	rgb(64, 24, 60)
HSL	hsl(306, 45%, 17%)
HSV	hsv(306, 63%, 25%)
CMYK	cmyk(0%, 62.5%, 6.2%, 74.9%)
CIE-LAB	lab(15.85, 25.12, -14.25)
CIE-LCH	lch(15.85, 28.88, 330.44°)
OKLab	oklab(28.5% 0.0715 -0.0389)
OKLCH	oklch(28.5% 0.081 331.4)
XYZ	xyz(3.2566, 2.0697, 4.5021)
Luminance	0.0207 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40183C #18401C

analogous

#301840 #40183C #401828

triadic

#40183C #3C4018 #183C40

tetradic

#40183C #403018 #18401C #182840

square

#40183C #403018 #18401C #182840

split-complementary

#40183C #284018 #184030

monochromatic

#160815 #160815 #40183C #6D2966 #99398F

Accessibility & contrast

On white

14.85

#40183C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#40183C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40183C

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40183C	#FFFFFF	#000000	##FFFFFF
##40183C	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16243D

Deuteranopia (green-blind)

#22293B

Tritanopia (blue-blind)

#431B27

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #40183c;
/* rgb */ color: rgb(64, 24, 60);
/* oklch */ color: oklch(28.5% 0.081 331.4);

Tailwind

colors: {
  custom: {
    50: '#765772',
    500: '#40183c',
    950: '#000000',
  },
}

SCSS

$custom: #40183c;
$custom-light: #765772;
$custom-dark: #000000;

JSON

{
  "hex": "#40183c",
  "rgb": {
    "r": 64,
    "g": 24,
    "b": 60
  },
  "hsl": {
    "h": 306,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.28499,
    "c": 0.08145,
    "h": 331.4
  },
  "luminance": 0.0207
}

Semantic roles & 50–950 ramp

primary

#40183C

secondary

#3D7743

accent

#D56053

background

#F7F5F6

surface

#EDE9EC

border

#C8C5C7

text

#090307

muted

#7B787A

Preview Lab

Preview with #40183C

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

Preview Lab → · Contrast checker → · Palette generator →