#40170A#40170A

#40170A is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.6% C 0.068 H 37.9°. Best body text is #FFFFFF at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#40170A
RGB	rgb(64, 23, 10)
HSL	hsl(14, 73%, 15%)
HSV	hsv(14, 84%, 25%)
CMYK	cmyk(0%, 64.1%, 84.4%, 74.9%)
CIE-LAB	lab(13.97, 19.02, 17.09)
CIE-LCH	lch(13.97, 25.57, 41.93°)
OKLab	oklab(26.56% 0.0536 0.0417)
OKLCH	oklch(26.56% 0.068 37.9)
XYZ	xyz(2.4758, 1.7250, 0.4897)
Luminance	0.0173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40170A #0A3340

analogous

#400A18 #40170A #40320A

triadic

#40170A #0A4017 #170A40

tetradic

#40170A #18400A #0A3340 #320A40

square

#40170A #18400A #0A3340 #320A40

split-complementary

#40170A #0A4032 #0A1840

monochromatic

#1A0A04 #1A0A04 #40170A #752A12 #AA3D1B

Accessibility & contrast

On white

15.61

#40170A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#40170A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40170A

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40170A	#FFFFFF	#000000	##FFFFFF
##40170A	1.00	15.61	1.35	15.61
#FFFFFF	15.61	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221E09

Deuteranopia (green-blind)

#2C2709

Tritanopia (blue-blind)

#470E14

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #40170a;
/* rgb */ color: rgb(64, 23, 10);
/* oklch */ color: oklch(26.6% 0.068 37.9);

Tailwind

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

SCSS

$custom: #40170a;
$custom-light: #79554b;
$custom-dark: #000000;

JSON

{
  "hex": "#40170a",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 10
  },
  "hsl": {
    "h": 14.444,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.26556,
    "c": 0.06793,
    "h": 37.9
  },
  "luminance": 0.01725
}

Semantic roles & 50–950 ramp

primary

#40170A

secondary

#29697D

accent

#C3F038

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #40170A

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

Preview Lab → · Contrast checker → · Palette generator →