#1B0804#1B0804

#1B0804 is a very dark, muted red. Relative luminance 0.004; OKLCH L 16.5% C 0.036 H 36.9°. Best body text is #FFFFFF at 19.39:1 contrast (WCAG AA passes).

Color values

HEX	#1B0804
RGB	rgb(27, 8, 4)
HSL	hsl(10, 74%, 6%)
HSV	hsv(10, 85%, 11%)
CMYK	cmyk(0%, 70.4%, 85.2%, 89.4%)
CIE-LAB	lab(3.75, 6.80, 4.10)
CIE-LCH	lch(3.75, 7.94, 31.13°)
OKLab	oklab(16.45% 0.0287 0.0215)
OKLCH	oklch(16.45% 0.036 36.9)
XYZ	xyz(0.5608, 0.4155, 0.1655)
Luminance	0.0042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0804 #04171B

analogous

#1B040B #1B0804 #1B1304

triadic

#1B0804 #041B08 #08041B

tetradic

#1B0804 #0B1B04 #04171B #13041B

square

#1B0804 #0B1B04 #04171B #13041B

split-complementary

#1B0804 #041B13 #040B1B

monochromatic

#1B0804 #1B0804 #1B0804 #50180C #862814

Accessibility & contrast

On white

19.39

#1B0804 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#1B0804 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0804

19.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0804	#FFFFFF	#000000	##FFFFFF
##1B0804	1.00	19.39	1.08	19.39
#FFFFFF	19.39	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0B04

Deuteranopia (green-blind)

#120F04

Tritanopia (blue-blind)

#1F0507

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #1b0804;
/* rgb */ color: rgb(27, 8, 4);
/* oklch */ color: oklch(16.5% 0.036 36.9);

Tailwind

colors: {
  custom: {
    50: '#564a48',
    500: '#1b0804',
    950: '#000000',
  },
}

SCSS

$custom: #1b0804;
$custom-light: #564a48;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0804",
  "rgb": {
    "r": 27,
    "g": 8,
    "b": 4
  },
  "hsl": {
    "h": 10.435,
    "s": 74.194,
    "l": 6.078
  },
  "oklch": {
    "l": 0.16452,
    "c": 0.03583,
    "h": 36.9
  },
  "luminance": 0.00415
}

Semantic roles & 50–950 ramp

primary

#1B0804

secondary

#1E525D

accent

#D1F137

background

#F5F4F4

surface

#E9E7E6

border

#C5C3C2

text

#030100

muted

#787777

Preview Lab

Preview with #1B0804

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

Preview Lab → · Contrast checker → · Palette generator →