#40170D#40170D

#40170D is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.6% C 0.067 H 34.9°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#40170D
RGB	rgb(64, 23, 13)
HSL	hsl(12, 66%, 15%)
HSV	hsv(12, 80%, 25%)
CMYK	cmyk(0%, 64.1%, 79.7%, 74.9%)
CIE-LAB	lab(14.01, 19.20, 15.81)
CIE-LCH	lch(14.01, 24.87, 39.48°)
OKLab	oklab(26.6% 0.0548 0.0383)
OKLCH	oklch(26.6% 0.067 34.9)
XYZ	xyz(2.4936, 1.7322, 0.5837)
Luminance	0.0173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40170D #0D3640

analogous

#400D1C #40170D #40310D

triadic

#40170D #0D4017 #170D40

tetradic

#40170D #1C400D #0D3640 #310D40

square

#40170D #1C400D #0D3640 #310D40

split-complementary

#40170D #0D4031 #0D1C40

monochromatic

#190905 #190905 #40170D #732917 #A63C22

Accessibility & contrast

On white

15.60

#40170D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#40170D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40170D

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40170D	#FFFFFF	#000000	##FFFFFF
##40170D	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221E0C

Deuteranopia (green-blind)

#2C270C

Tritanopia (blue-blind)

#470E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #40170d;
/* rgb */ color: rgb(64, 23, 13);
/* oklch */ color: oklch(26.6% 0.067 34.9);

Tailwind

colors: {
  custom: {
    50: '#79554c',
    500: '#40170d',
    950: '#000000',
  },
}

SCSS

$custom: #40170d;
$custom-light: #79554c;
$custom-dark: #000000;

JSON

{
  "hex": "#40170d",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 13
  },
  "hsl": {
    "h": 11.765,
    "s": 66.234,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26601,
    "c": 0.06689,
    "h": 34.9
  },
  "luminance": 0.01732
}

Semantic roles & 50–950 ramp

primary

#40170D

secondary

#2D6C7C

accent

#C8E93F

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #40170D

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

Preview Lab → · Contrast checker → · Palette generator →