#40171E#40171E

#40171E is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.064 H 11.9°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#40171E
RGB	rgb(64, 23, 30)
HSL	hsl(350, 47%, 17%)
HSV	hsv(350, 64%, 25%)
CMYK	cmyk(0%, 64.1%, 53.1%, 74.9%)
CIE-LAB	lab(14.38, 20.76, 5.14)
CIE-LCH	lch(14.38, 21.38, 13.91°)
OKLab	oklab(27% 0.0628 0.0132)
OKLCH	oklch(27% 0.064 11.9)
XYZ	xyz(2.6553, 1.7968, 1.4350)
Luminance	0.0180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40171E #174039

analogous

#401733 #40171E #402517

triadic

#40171E #1E4017 #171E40

tetradic

#40171E #334017 #174039 #251740

square

#40171E #334017 #174039 #251740

split-complementary

#40171E #174025 #173340

monochromatic

#17080B #17080B #40171E #6D2733 #9A3748

Accessibility & contrast

On white

15.45

#40171E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#40171E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40171E

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40171E	#FFFFFF	#000000	##FFFFFF
##40171E	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201F1E

Deuteranopia (green-blind)

#2A271D

Tritanopia (blue-blind)

#46121A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #40171e;
/* rgb */ color: rgb(64, 23, 30);
/* oklch */ color: oklch(27.0% 0.064 11.9);

Tailwind

colors: {
  custom: {
    50: '#775659',
    500: '#40171e',
    950: '#000000',
  },
}

SCSS

$custom: #40171e;
$custom-light: #775659;
$custom-dark: #000000;

JSON

{
  "hex": "#40171e",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 30
  },
  "hsl": {
    "h": 349.756,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.26999,
    "c": 0.06422,
    "h": 11.9
  },
  "luminance": 0.01797
}

Semantic roles & 50–950 ramp

primary

#40171E

secondary

#3C776D

accent

#D7C051

background

#F7F5F5

surface

#EDE9E9

border

#C8C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #40171E

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

Preview Lab → · Contrast checker → · Palette generator →