#40170C#40170C

#40170C is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.6% C 0.067 H 36.0°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#40170C
RGB	rgb(64, 23, 12)
HSL	hsl(13, 68%, 15%)
HSV	hsv(13, 81%, 25%)
CMYK	cmyk(0%, 64.1%, 81.2%, 74.9%)
CIE-LAB	lab(14.00, 19.14, 16.26)
CIE-LCH	lch(14.00, 25.12, 40.35°)
OKLab	oklab(26.58% 0.0544 0.0395)
OKLCH	oklch(26.58% 0.067 36)
XYZ	xyz(2.4874, 1.7296, 0.5506)
Luminance	0.0173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40170C #0C3540

analogous

#400C1B #40170C #40310C

triadic

#40170C #0C4017 #170C40

tetradic

#40170C #1B400C #0C3540 #310C40

square

#40170C #1B400C #0C3540 #310C40

split-complementary

#40170C #0C4031 #0C1B40

monochromatic

#1A0905 #1A0905 #40170C #742A16 #A73C1F

Accessibility & contrast

On white

15.60

#40170C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#40170C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40170C

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40170C	#FFFFFF	#000000	##FFFFFF
##40170C	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)

#221E0B

Deuteranopia (green-blind)

#2C270B

Tritanopia (blue-blind)

#470E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #40170c;
/* rgb */ color: rgb(64, 23, 12);
/* oklch */ color: oklch(26.6% 0.067 36.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40170c",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 12
  },
  "hsl": {
    "h": 12.692,
    "s": 68.421,
    "l": 14.902
  },
  "oklch": {
    "l": 0.26585,
    "c": 0.06724,
    "h": 36
  },
  "luminance": 0.01729
}

Semantic roles & 50–950 ramp

primary

#40170C

secondary

#2C6B7C

accent

#C6EB3D

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #40170C

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

Preview Lab → · Contrast checker → · Palette generator →