Photo in the color Onyx
Pictured: Onyx, the closest color we have a photo of (#0F0F0F)
rgb(18, 17, 14)
#12110E

Sinister #12110E RGB Color Code

Name from the community color list.

Sinister (#12110E) is a neutral black. In RGB it is made of 7% red, 7% green and 5% blue (R 18, G 17, B 14). The red channel is the strongest. In HSL it has a hue of 45°, 13% saturation and 6% lightness. Its relative luminance is 0.006, so white text is easier to read on top of it. For print, a rough CMYK match is 0% cyan, 6% magenta, 22% yellow and 93% black. Check it against your printer's ICC profile before you print. It is a neutral color. It goes well with warm oranges and reds for contrast. For a calm, matching look, use nearby cool tones.

Open in color picker

Sinister color codes

#12110E in every common color format. Click a value to copy it.

FormatValueNotesCopy
HEX #12110E Valid CSS
RGB rgb(18, 17, 14) Valid CSS
HSL hsl(45, 13%, 6%) Valid CSS
HSV / HSB hsv(45, 22%, 7%) Not a CSS format
HWB hwb(45 5% 93%) Valid CSS
CMYK cmyk(0%, 6%, 22%, 93%) Approximate (no ICC profile)
OKLCH oklch(17.76% 0.0062 91.67) Valid CSS
OKLab oklab(17.76% -0.0002 0.0062) Valid CSS
CIELAB lab(5.09% -0.02 1.66) D50, as in CSS
CIELCH lch(5.09% 1.66 90.63) Valid CSS
Display P3 color(display-p3 0.0699 0.0668 0.0561) Valid CSS
XYZ (D65) color(xyz-d65 0.0053 0.0056 0.005) Valid CSS
Decimal 1184014 Integer (0xRRGGBB)

CMYK here is a rough screen match without an ICC profile. See CMYK and print. Relative luminance: 0.0056. Nearest web-safe color: #000000.

Mix Sinister with other colors

See what #12110E makes with red paint, under a green light, printed with cyan ink and in a digital blend with blue. Click a picture to change the colors and amounts in the color mixer.

Use Sinister in your code

Ready to paste into CSS, Sass, Tailwind, iOS, Android and Flutter. Click the icon to copy a line.

WhereCodeCopy
CSS variable--sinister: #12110E;
Sass variable$sinister: #12110E;
Tailwind CSS v4@theme { --color-sinister: #12110E; }
Tailwind CSS v3 configcolors: { 'sinister': '#12110E' }
SwiftUIColor(red: 0.071, green: 0.067, blue: 0.055)
UIKitUIColor(red: 0.071, green: 0.067, blue: 0.055, alpha: 1)
Android XML<color name="sinister">#FF12110E</color>
Flutter and Jetpack ComposeColor(0xFF12110E)

Accessibility and contrast

White text works best on #12110E (18.88:1, AAA). Here is how #12110E does as a text color:

Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
18.88:1 on white
APCA Lc 105
AAA
Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
1.11:1 on black
APCA Lc 0
Fails AATry #757470

Check this color against any background in the contrast checker. WCAG ratios and APCA Lc values measure different things, so one can't stand in for the other. Learn more.

How people with color blindness see Sinister

#12110E next to its complement and its two triadic colors, as seen with each type of color blindness.

  • Normal visionhow most people see it
  • Protanopiano red cones, about 1% of men
  • Deuteranopiano green cones, the most common type
  • Tritanopiano blue cones, very rare
  • Achromatopsiano color at all, very rare

#12110E has almost no hue, so it looks much the same with every type of color blindness. Only its lightness counts. Try your own colors in the color blindness simulator.

Sinister in a user interface

A sample app screen with #12110E as the main color, on a light and a dark theme.

Light theme

Dark theme

Buttons and bars use #12110E as it is. On the dark theme, #12110E is too hard to read as text (1.06:1), so links, the badge and outline text use #81807C there (4.49:1). Build a full color scheme around it in the UI color preview.

Color harmonies for Sinister

These schemes turn the hue of #12110E around the color wheel. Each swatch links to its own page.

Complementary

Two colors on opposite sides of the wheel. This gives the most contrast.

Open palette

Analogous

Hues that sit next to each other and look good together.

Open palette

Triadic

Three hues spaced evenly around the wheel. Bold, but still balanced.

Open palette

Split complementary

A base color plus the two hues on each side of its opposite. Strong contrast that clashes less.

Open palette

Tetradic (rectangle)

Two pairs of opposite colors. Let one color lead and use the others less.

Open palette

Square

Four hues 90° apart, spread evenly around the wheel.

Open palette

Monochromatic

One hue at different levels of lightness and saturation.

Open palette

Gradients with Sinister

Four CSS gradients made from #12110E. Copy the code, or open one in the gradient generator to change it.

Soft tint

From a pale tint to the full color.

background: linear-gradient(90deg, #C9C9C8, #12110E);

Edit in the gradient generator

Deep shade

The color fading into a dark shade.

background: linear-gradient(180deg, #12110E, #010101);

Edit in the gradient generator

Analogous

Its two neighbors on the color wheel.

background: linear-gradient(135deg, #120F0E, #12110E, #11120E);

Edit in the gradient generator

Triadic

A bold blend with a triadic color, through a clean middle.

background: linear-gradient(135deg, #12110E, #101210, #0E1211);

Edit in the gradient generator

Shades, tints and tones of Sinister

Shades are darker, tints are lighter and tones are grayer. We make them in OKLCH so the steps look even. Hover a step to see its code, or click it to open it.

Design system scale (50 to 950)

Sinister sits at step 950. Export the full scale as CSS variables or Tailwind tokens from the picker.

  1. 50
    F7F7F5
  2. 100
    EDEDEB
  3. 200
    DBDBD8
  4. 300
    C2C1BD
  5. 400
    A4A39F
  6. 500
    878682
  7. 600
    6D6C68
  8. 700
    565552
  9. 800
    43423F
  10. 900
    31302E
  11. 950
    12110E

Closest RAL, Tailwind and CSS colors

The nearest match to #12110E in three color systems that designers and builders use.

ΔE is the distance in OKLab: under 2 is hard to see, over 10 is a clearly different color. Browse all RAL colors, the Tailwind palette or the 148 CSS color names. RAL values on screens are only a guide, so check a real color chart before you order paint.

The named colors that look closest to this one (ΔE in OKLab). Browse all shades of black or search the color library.