#39040A#39040A

#39040A is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.4% C 0.082 H 20.5°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#39040A
RGB	rgb(57, 4, 10)
HSL	hsl(353, 87%, 12%)
HSV	hsv(353, 93%, 22%)
CMYK	cmyk(0%, 93%, 82.5%, 77.6%)
CIE-LAB	lab(8.81, 25.96, 9.73)
CIE-LCH	lch(8.81, 27.73, 20.55°)
OKLab	oklab(22.41% 0.0764 0.0285)
OKLCH	oklch(22.41% 0.082 20.5)
XYZ	xyz(1.7858, 0.9789, 0.3820)
Luminance	0.0098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39040A #043933

analogous

#390425 #39040A #391904

triadic

#39040A #0A3904 #040A39

tetradic

#39040A #253904 #043933 #190439

square

#39040A #253904 #043933 #190439

split-complementary

#39040A #043919 #042539

monochromatic

#1D0205 #1D0205 #39040A #720814 #AB0C1E

Accessibility & contrast

On white

17.56

#39040A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#39040A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39040A

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39040A	#FFFFFF	#000000	##FFFFFF
##39040A	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120A

Deuteranopia (green-blind)

#211D08

Tritanopia (blue-blind)

#400006

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #39040a;
/* rgb */ color: rgb(57, 4, 10);
/* oklch */ color: oklch(22.4% 0.082 20.5);

Tailwind

colors: {
  custom: {
    50: '#744a4b',
    500: '#39040a',
    950: '#000000',
  },
}

SCSS

$custom: #39040a;
$custom-light: #744a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#39040a",
  "rgb": {
    "r": 57,
    "g": 4,
    "b": 10
  },
  "hsl": {
    "h": 353.208,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22405,
    "c": 0.08154,
    "h": 20.5
  },
  "luminance": 0.00979
}

Semantic roles & 50–950 ramp

primary

#39040A

secondary

#1E7B70

accent

#FDE52B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #39040A

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

Preview Lab → · Contrast checker → · Palette generator →