#39040C#39040C

#39040C is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.4% C 0.081 H 18.4°. Best body text is #FFFFFF at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#39040C
RGB	rgb(57, 4, 12)
HSL	hsl(351, 87%, 12%)
HSV	hsv(351, 93%, 22%)
CMYK	cmyk(0%, 93%, 78.9%, 77.6%)
CIE-LAB	lab(8.85, 26.08, 8.93)
CIE-LCH	lch(8.85, 27.57, 18.90°)
OKLab	oklab(22.45% 0.0773 0.0257)
OKLCH	oklch(22.45% 0.081 18.4)
XYZ	xyz(1.7973, 0.9835, 0.4430)
Luminance	0.0098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39040C #043931

analogous

#390427 #39040C #391704

triadic

#39040C #0C3904 #040C39

tetradic

#39040C #273904 #043931 #170439

square

#39040C #273904 #043931 #170439

split-complementary

#39040C #043917 #042739

monochromatic

#1D0206 #1D0206 #39040C #720818 #AB0C24

Accessibility & contrast

On white

17.55

#39040C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#39040C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39040C

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39040C	#FFFFFF	#000000	##FFFFFF
##39040C	1.00	17.55	1.20	17.55
#FFFFFF	17.55	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120C

Deuteranopia (green-blind)

#211D0A

Tritanopia (blue-blind)

#400007

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #39040c;
/* rgb */ color: rgb(57, 4, 12);
/* oklch */ color: oklch(22.4% 0.081 18.4);

Tailwind

colors: {
  custom: {
    50: '#744a4c',
    500: '#39040c',
    950: '#000000',
  },
}

SCSS

$custom: #39040c;
$custom-light: #744a4c;
$custom-dark: #000000;

JSON

{
  "hex": "#39040c",
  "rgb": {
    "r": 57,
    "g": 4,
    "b": 12
  },
  "hsl": {
    "h": 350.943,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22446,
    "c": 0.08147,
    "h": 18.4
  },
  "luminance": 0.00983
}

Semantic roles & 50–950 ramp

primary

#39040C

secondary

#1E7B6D

accent

#FDDD2B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #39040C

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

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