#39040F#39040F

#39040F is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.5% C 0.082 H 14.9°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#39040F
RGB	rgb(57, 4, 15)
HSL	hsl(348, 87%, 12%)
HSV	hsv(348, 93%, 22%)
CMYK	cmyk(0%, 93%, 73.7%, 77.6%)
CIE-LAB	lab(8.92, 26.28, 7.55)
CIE-LCH	lch(8.92, 27.34, 16.03°)
OKLab	oklab(22.52% 0.0788 0.021)
OKLCH	oklch(22.52% 0.082 14.9)
XYZ	xyz(1.8172, 0.9915, 0.5475)
Luminance	0.0099 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39040F #04392E

analogous

#39042A #39040F #391404

triadic

#39040F #0F3904 #040F39

tetradic

#39040F #2A3904 #04392E #140439

square

#39040F #2A3904 #04392E #140439

split-complementary

#39040F #043914 #042A39

monochromatic

#1D0208 #1D0208 #39040F #72081E #AB0C2D

Accessibility & contrast

On white

17.53

#39040F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#39040F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39040F

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39040F	#FFFFFF	#000000	##FFFFFF
##39040F	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13120F

Deuteranopia (green-blind)

#211D0D

Tritanopia (blue-blind)

#3F0008

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #39040f;
/* rgb */ color: rgb(57, 4, 15);
/* oklch */ color: oklch(22.5% 0.082 14.9);

Tailwind

colors: {
  custom: {
    50: '#744a4e',
    500: '#39040f',
    950: '#000000',
  },
}

SCSS

$custom: #39040f;
$custom-light: #744a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#39040f",
  "rgb": {
    "r": 57,
    "g": 4,
    "b": 15
  },
  "hsl": {
    "h": 347.547,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22517,
    "c": 0.08152,
    "h": 14.9
  },
  "luminance": 0.00991
}

Semantic roles & 50–950 ramp

primary

#39040F

secondary

#1E7B68

accent

#FDD12B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #39040F

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

Preview Lab → · Contrast checker → · Palette generator →