#3B040C#3B040C

#3B040C is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.9% C 0.084 H 18.9°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#3B040C
RGB	rgb(59, 4, 12)
HSL	hsl(351, 87%, 12%)
HSV	hsv(351, 93%, 23%)
CMYK	cmyk(0%, 93.2%, 79.7%, 76.9%)
CIE-LAB	lab(9.35, 26.76, 9.70)
CIE-LCH	lch(9.35, 28.47, 19.93°)
OKLab	oklab(22.9% 0.0792 0.0272)
OKLCH	oklch(22.9% 0.084 18.9)
XYZ	xyz(1.9136, 1.0435, 0.4484)
Luminance	0.0104 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B040C #043B33

analogous

#3B0427 #3B040C #3B1804

triadic

#3B040C #0C3B04 #040C3B

tetradic

#3B040C #273B04 #043B33 #18043B

square

#3B040C #273B04 #043B33 #18043B

split-complementary

#3B040C #043B18 #04273B

monochromatic

#1D0206 #1D0206 #3B040C #740818 #AE0C23

Accessibility & contrast

On white

17.38

#3B040C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3B040C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B040C

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B040C	#FFFFFF	#000000	##FFFFFF
##3B040C	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14130C

Deuteranopia (green-blind)

#221E0A

Tritanopia (blue-blind)

#420007

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b040c;
/* rgb */ color: rgb(59, 4, 12);
/* oklch */ color: oklch(22.9% 0.084 18.9);

Tailwind

colors: {
  custom: {
    50: '#764a4c',
    500: '#3b040c',
    950: '#000000',
  },
}

SCSS

$custom: #3b040c;
$custom-light: #764a4c;
$custom-dark: #000000;

JSON

{
  "hex": "#3b040c",
  "rgb": {
    "r": 59,
    "g": 4,
    "b": 12
  },
  "hsl": {
    "h": 351.273,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22899,
    "c": 0.08369,
    "h": 18.9
  },
  "luminance": 0.01043
}

Semantic roles & 50–950 ramp

primary

#3B040C

secondary

#1E7D6F

accent

#FDDF2A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3B040C

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

Preview Lab → · Contrast checker → · Palette generator →