#40040D#40040D

#40040D is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.0% C 0.089 H 19.3°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#40040D
RGB	rgb(64, 4, 13)
HSL	hsl(351, 88%, 13%)
HSV	hsv(351, 94%, 25%)
CMYK	cmyk(0%, 93.8%, 79.7%, 74.9%)
CIE-LAB	lab(10.60, 28.49, 11.19)
CIE-LCH	lch(10.60, 30.60, 21.44°)
OKLab	oklab(24.05% 0.0841 0.0295)
OKLCH	oklch(24.05% 0.089 19.3)
XYZ	xyz(2.2307, 1.2062, 0.4961)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40040D #044037

analogous

#40042B #40040D #401904

triadic

#40040D #0D4004 #040D40

tetradic

#40040D #2B4004 #044037 #190440

square

#40040D #2B4004 #044037 #190440

split-complementary

#40040D #044019 #042B40

monochromatic

#1D0206 #1D0206 #40040D #7A0819 #B30B24

Accessibility & contrast

On white

16.92

#40040D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#40040D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40040D

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40040D	#FFFFFF	#000000	##FFFFFF
##40040D	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140D

Deuteranopia (green-blind)

#26210B

Tritanopia (blue-blind)

#470008

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #40040d;
/* rgb */ color: rgb(64, 4, 13);
/* oklch */ color: oklch(24.0% 0.089 19.3);

Tailwind

colors: {
  custom: {
    50: '#7a4b4c',
    500: '#40040d',
    950: '#000000',
  },
}

SCSS

$custom: #40040d;
$custom-light: #7a4b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#40040d",
  "rgb": {
    "r": 64,
    "g": 4,
    "b": 13
  },
  "hsl": {
    "h": 351,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24048,
    "c": 0.08912,
    "h": 19.3
  },
  "luminance": 0.01206
}

Semantic roles & 50–950 ramp

primary

#40040D

secondary

#1F8172

accent

#FEDE29

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #40040D

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

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