#40040F#40040F

#40040F is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.089 H 17.4°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#40040F
RGB	rgb(64, 4, 15)
HSL	hsl(349, 88%, 13%)
HSV	hsv(349, 94%, 25%)
CMYK	cmyk(0%, 93.8%, 76.6%, 74.9%)
CIE-LAB	lab(10.64, 28.60, 10.23)
CIE-LCH	lch(10.64, 30.38, 19.69°)
OKLab	oklab(24.09% 0.085 0.0266)
OKLCH	oklch(24.09% 0.089 17.4)
XYZ	xyz(2.2442, 1.2117, 0.5676)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40040F #044035

analogous

#40042D #40040F #401704

triadic

#40040F #0F4004 #040F40

tetradic

#40040F #2D4004 #044035 #170440

square

#40040F #2D4004 #044035 #170440

split-complementary

#40040F #044017 #042D40

monochromatic

#1D0207 #1D0207 #40040F #7A081C #B30B2A

Accessibility & contrast

On white

16.91

#40040F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#40040F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40040F

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40040F	#FFFFFF	#000000	##FFFFFF
##40040F	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)

#16150F

Deuteranopia (green-blind)

#25210D

Tritanopia (blue-blind)

#470008

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #40040f;
/* rgb */ color: rgb(64, 4, 15);
/* oklch */ color: oklch(24.1% 0.089 17.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40040f",
  "rgb": {
    "r": 64,
    "g": 4,
    "b": 15
  },
  "hsl": {
    "h": 349,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2409,
    "c": 0.08908,
    "h": 17.4
  },
  "luminance": 0.01211
}

Semantic roles & 50–950 ramp

primary

#40040F

secondary

#1F816F

accent

#FED729

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #40040F

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

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