#40173B#40173B

#40173B is a dark, moderate purple. Relative luminance 0.020; OKLCH L 28.3% C 0.082 H 332.5°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#40173B
RGB	rgb(64, 23, 59)
HSL	hsl(307, 47%, 17%)
HSV	hsv(307, 64%, 25%)
CMYK	cmyk(0%, 64.1%, 7.8%, 74.9%)
CIE-LAB	lab(15.59, 25.48, -13.95)
CIE-LCH	lch(15.59, 29.05, 331.29°)
OKLab	oklab(28.29% 0.073 -0.0381)
OKLCH	oklch(28.29% 0.082 332.5)
XYZ	xyz(3.2102, 2.0188, 4.3574)
Luminance	0.0202 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40173B #17401C

analogous

#311740 #40173B #401727

triadic

#40173B #3B4017 #173B40

tetradic

#40173B #403117 #17401C #172740

square

#40173B #403117 #17401C #172740

split-complementary

#40173B #274017 #174031

monochromatic

#170815 #170815 #40173B #6D2765 #9A378E

Accessibility & contrast

On white

14.96

#40173B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#40173B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40173B

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40173B	#FFFFFF	#000000	##FFFFFF
##40173B	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233C

Deuteranopia (green-blind)

#22293A

Tritanopia (blue-blind)

#431A26

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #40173b;
/* rgb */ color: rgb(64, 23, 59);
/* oklch */ color: oklch(28.3% 0.082 332.5);

Tailwind

colors: {
  custom: {
    50: '#765771',
    500: '#40173b',
    950: '#000000',
  },
}

SCSS

$custom: #40173b;
$custom-light: #765771;
$custom-dark: #000000;

JSON

{
  "hex": "#40173b",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 59
  },
  "hsl": {
    "h": 307.317,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.28288,
    "c": 0.08231,
    "h": 332.5
  },
  "luminance": 0.02019
}

Semantic roles & 50–950 ramp

primary

#40173B

secondary

#3C7743

accent

#D76151

background

#F7F5F6

surface

#EDE9EC

border

#C8C5C7

text

#090307

muted

#7B787A

Preview Lab

Preview with #40173B

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

Preview Lab → · Contrast checker → · Palette generator →