#40040E#40040E

#40040E is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.089 H 18.3°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#40040E
RGB	rgb(64, 4, 14)
HSL	hsl(350, 88%, 13%)
HSV	hsv(350, 94%, 25%)
CMYK	cmyk(0%, 93.8%, 78.1%, 74.9%)
CIE-LAB	lab(10.62, 28.54, 10.72)
CIE-LCH	lch(10.62, 30.49, 20.59°)
OKLab	oklab(24.07% 0.0846 0.028)
OKLCH	oklch(24.07% 0.089 18.3)
XYZ	xyz(2.2373, 1.2089, 0.5309)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40040E #044036

analogous

#40042C #40040E #401804

triadic

#40040E #0E4004 #040E40

tetradic

#40040E #2C4004 #044036 #180440

square

#40040E #2C4004 #044036 #180440

split-complementary

#40040E #044018 #042C40

monochromatic

#1D0206 #1D0206 #40040E #7A081B #B30B27

Accessibility & contrast

On white

16.91

#40040E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#40040E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40040E

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40040E	#FFFFFF	#000000	##FFFFFF
##40040E	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16150E

Deuteranopia (green-blind)

#25210C

Tritanopia (blue-blind)

#470008

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #40040e;
/* rgb */ color: rgb(64, 4, 14);
/* oklch */ color: oklch(24.1% 0.089 18.3);

Tailwind

colors: {
  custom: {
    50: '#7a4b4d',
    500: '#40040e',
    950: '#000000',
  },
}

SCSS

$custom: #40040e;
$custom-light: #7a4b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#40040e",
  "rgb": {
    "r": 64,
    "g": 4,
    "b": 14
  },
  "hsl": {
    "h": 350,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24069,
    "c": 0.08909,
    "h": 18.3
  },
  "luminance": 0.01209
}

Semantic roles & 50–950 ramp

primary

#40040E

secondary

#1F8171

accent

#FEDB29

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #40040E

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

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