#3B040F#3B040F

#3B040F is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.0% C 0.084 H 15.7°. Best body text is #FFFFFF at 17.35:1 contrast (WCAG AA passes).

Color values

HEX	#3B040F
RGB	rgb(59, 4, 15)
HSL	hsl(348, 87%, 12%)
HSV	hsv(348, 93%, 23%)
CMYK	cmyk(0%, 93.2%, 74.6%, 76.9%)
CIE-LAB	lab(9.41, 26.95, 8.32)
CIE-LCH	lch(9.41, 28.21, 17.15°)
OKLab	oklab(22.97% 0.0806 0.0226)
OKLCH	oklch(22.97% 0.084 15.7)
XYZ	xyz(1.9335, 1.0514, 0.5530)
Luminance	0.0105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B040F #043B30

analogous

#3B042B #3B040F #3B1504

triadic

#3B040F #0F3B04 #040F3B

tetradic

#3B040F #2B3B04 #043B30 #15043B

square

#3B040F #2B3B04 #043B30 #15043B

split-complementary

#3B040F #043B15 #042B3B

monochromatic

#1D0207 #1D0207 #3B040F #74081E #AE0C2C

Accessibility & contrast

On white

17.35

#3B040F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3B040F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B040F

17.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B040F	#FFFFFF	#000000	##FFFFFF
##3B040F	1.00	17.35	1.21	17.35
#FFFFFF	17.35	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14130F

Deuteranopia (green-blind)

#221E0D

Tritanopia (blue-blind)

#420008

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b040f;
/* rgb */ color: rgb(59, 4, 15);
/* oklch */ color: oklch(23.0% 0.084 15.7);

Tailwind

colors: {
  custom: {
    50: '#764a4d',
    500: '#3b040f',
    950: '#000000',
  },
}

SCSS

$custom: #3b040f;
$custom-light: #764a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#3b040f",
  "rgb": {
    "r": 59,
    "g": 4,
    "b": 15
  },
  "hsl": {
    "h": 348,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22967,
    "c": 0.0837,
    "h": 15.7
  },
  "luminance": 0.01051
}

Semantic roles & 50–950 ramp

primary

#3B040F

secondary

#1E7D6A

accent

#FDD32A

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3B040F

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

Preview Lab → · Contrast checker → · Palette generator →