#1F0909#1F0909

#1F0909 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.6% C 0.039 H 21.8°. Best body text is #FFFFFF at 19.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F0909
RGB	rgb(31, 9, 9)
HSL	hsl(0, 55%, 8%)
HSV	hsv(0, 71%, 12%)
CMYK	cmyk(0%, 71%, 71%, 87.8%)
CIE-LAB	lab(4.58, 9.45, 3.33)
CIE-LCH	lch(4.58, 10.02, 19.41°)
OKLab	oklab(17.63% 0.0358 0.0143)
OKLCH	oklch(17.63% 0.039 21.8)
XYZ	xyz(0.7121, 0.5065, 0.3187)
Luminance	0.0051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0909 #091F1F

analogous

#1F0914 #1F0909 #1F1409

triadic

#1F0909 #091F09 #09091F

tetradic

#1F0909 #141F09 #091F1F #14091F

square

#1F0909 #141F09 #091F1F #14091F

split-complementary

#1F0909 #091F14 #09141F

monochromatic

#180707 #180707 #1F0909 #4E1717 #7E2525

Accessibility & contrast

On white

19.07

#1F0909 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1F0909 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0909

19.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0909	#FFFFFF	#000000	##FFFFFF
##1F0909	1.00	19.07	1.10	19.07
#FFFFFF	19.07	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0D09

Deuteranopia (green-blind)

#141109

Tritanopia (blue-blind)

#230609

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1f0909;
/* rgb */ color: rgb(31, 9, 9);
/* oklch */ color: oklch(17.6% 0.039 21.8);

Tailwind

colors: {
  custom: {
    50: '#5a4a4b',
    500: '#1f0909',
    950: '#000000',
  },
}

SCSS

$custom: #1f0909;
$custom-light: #5a4a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0909",
  "rgb": {
    "r": 31,
    "g": 9,
    "b": 9
  },
  "hsl": {
    "h": 0,
    "s": 55,
    "l": 7.843
  },
  "oklch": {
    "l": 0.17632,
    "c": 0.03851,
    "h": 21.8
  },
  "luminance": 0.00506
}

Semantic roles & 50–950 ramp

primary

#1F0909

secondary

#295B5B

accent

#DEDE49

background

#F5F4F4

surface

#E9E7E7

border

#C5C3C3

text

#040101

muted

#797777

Preview Lab

Preview with #1F0909

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

Preview Lab → · Contrast checker → · Palette generator →