#40171A#40171A

#40171A is a dark, moderate red. Relative luminance 0.018; OKLCH L 26.9% C 0.064 H 18.0°. Best body text is #FFFFFF at 15.49:1 contrast (WCAG AA passes).

Color values

HEX	#40171A
RGB	rgb(64, 23, 26)
HSL	hsl(356, 47%, 17%)
HSV	hsv(356, 64%, 25%)
CMYK	cmyk(0%, 64.1%, 59.4%, 74.9%)
CIE-LAB	lab(14.27, 20.30, 7.90)
CIE-LCH	lch(14.27, 21.79, 21.27°)
OKLab	oklab(26.88% 0.0609 0.0198)
OKLCH	oklch(26.88% 0.064 18)
XYZ	xyz(2.6074, 1.7777, 1.1829)
Luminance	0.0178 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40171A #17403D

analogous

#40172F #40171A #402917

triadic

#40171A #1A4017 #171A40

tetradic

#40171A #2F4017 #17403D #291740

square

#40171A #2F4017 #17403D #291740

split-complementary

#40171A #174029 #172F40

monochromatic

#170809 #170809 #40171A #6D272C #9A373F

Accessibility & contrast

On white

15.49

#40171A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#40171A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40171A

15.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40171A	#FFFFFF	#000000	##FFFFFF
##40171A	1.00	15.49	1.36	15.49
#FFFFFF	15.49	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201F1A

Deuteranopia (green-blind)

#2B2719

Tritanopia (blue-blind)

#461118

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #40171a;
/* rgb */ color: rgb(64, 23, 26);
/* oklch */ color: oklch(26.9% 0.064 18.0);

Tailwind

colors: {
  custom: {
    50: '#785656',
    500: '#40171a',
    950: '#000000',
  },
}

SCSS

$custom: #40171a;
$custom-light: #785656;
$custom-dark: #000000;

JSON

{
  "hex": "#40171a",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 26
  },
  "hsl": {
    "h": 355.61,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.26882,
    "c": 0.06405,
    "h": 18
  },
  "luminance": 0.01777
}

Semantic roles & 50–950 ramp

primary

#40171A

secondary

#3C7773

accent

#D7CD51

background

#F7F5F5

surface

#EDE9E9

border

#C8C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #40171A

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

Preview Lab → · Contrast checker → · Palette generator →