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#21201B Hex Code

Color Name: Eerie Black

What is hex #21201B Color?

Eerie Black (Hex code: 21201B) Thumbnail

The color name of hex code #21201B is Eerie Black. The RGB values are (33, 32, 27) which means it is composed of 36% red, 35% green and 29% blue. The CMYK color codes, used in printers, are C:0 M:3 Y:18 K:87. In the HSV/HSB scale, #21201B has a hue of 50°, 18% saturation and a brightness value of 13%.
Details of other color codes including equivalent web safe and HTML & CSS colors are given in the table below. Also listed are the closest Pantone® (PMS) and RAL colors.

Download Eerie Black Solid Color Background

Hex #21201B Color Codes

Color NameEerie Black
RGB Values(33, 32, 27)
CMYK Values(0%, 3%, 18%, 87%)
HSV/HSB Values(50°, 18%, 13%)
Closest Web Safe#333333
Inverse Color#DEDFE4 [Gainsboro]
Closest Pantone®419 C
Closest RAL8022 [Black brown]
Complementary Color#1B1C21 [Eerie Black]
#21201B Converted to Grayscale Codes
Simple Average#1F1F1F
Weighted Average (Most Common)#202020
Weighted Average (Luma)#202020
Weighted Average (Gamma Adjusted)#606060

Hex #21201B Color Palettes

21201B is almost gray. We don't think there is any need to display the color palettes.
Complementary color palette of 21201B. Complementary color is 1B1C21

Complementary Palette

The complement of #21201B is #1B1C21 which is called Eerie Black. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #21201B color is offered by #1B1C21. The complementary color palette is easiest to use and work with. Studies have shown that contrasting color palette is the best way to grab a viewer's attention.

21201B 1B1C21
Analogous color palette with (21201B, 1F211B and 211D1B)

Analogous Palette

The analogous colors of #21201B are #1F211B and #211D1B, called Eerie Black and Eerie Black, respectively. In the RGB color wheel, they are located to the right and left of #21201B with a 30° separation. An analogous color palette is extremely soothing to the eyes and works wonders if your main color is soft or pastel.

21201B 1F211B 211D1B
Split Complementary color palette with (21201B, 1B1F21 and 1D1B21)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of #21201B are #1B1F21 (Dark Jungle Green) and #1D1B21 (Eerie Black). A split-complementary color palette consists of the main color along with those on either side (30°) of the complementary color. Based on our research, usage of split-complementary palettes is on the rise online, especially in graphics and web sites designs. It may be because it is not as contrasting as the complementary color palette and, hence, results in a combination which is pleasant to the eyes.

21201B 1B1F21 1D1B21
Triadic color palette with (21201B, 1B2120 and 201B21)

Triadic Palette

#21201B triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #1B2120 (Dark Jungle Green) and #201B21 (Eerie Black) along with #21201B, our main color, create a stunning and beautiful triadic palette with the maximum variation in hue and, therefore, offering the best possible contrast when taken together.

21201B 1B2120 201B21
Tetradic color palette with (21201B, 1B2120, 1B1C21 and 211B1C)

Tetradic Palette

The tetradic palette of #21201B has #1B2120 (Dark Jungle Green), #1B1C21 (Eerie Black) and #211B1C (Eerie Black). A tetradic color palette is complex and, in most cases, should not be used off-the-shelf. We suggest tweaking the colors a little bit to achieve desired results.

21201B 1B2120 1B1C21 211B1C
Square color palette with (21201B, 1B211D, 1B1C21 and 211B1F)

Square Palette

The square color palette of #21201B contains #1B211D (Dark Jungle Green), #1B1C21 (Eerie Black) and #211B1F (Eerie Black). Quite like triadic, the hues in a square palette are at the maximum distance from each other, which is 90°.
Note: For several colors purposes, a square palette may look much better than the tetrad color palette.

21201B 1B211D 1B1C21 211B1F
Rainbow color

Hex #21201B Rainbow Colors Palette

Our #21201B rainbow color palette is based on the RGB color model and consists of 7 colors, just like the traditional rainbow. You might not see a lot of variation in color, especially if the chosen color is dark or extremely light. However, this can lead interesting rainbow palettes that are faded, soft, pastel or dull.

21201B 1D211B 1B211E 1B1F21 1D1B21 211B20 211B1B

Tints, Tones & Shades of 21201B Color


  • Transparent 4D4D494D4D49
  • Transparent 64635F64635F
  • Transparent 7A79767A7976
  • Transparent 90908D90908D
  • Transparent A6A6A4A6A6A4
  • Transparent BCBCBBBCBCBB
  • Transparent D3D2D1D3D2D1
  • Transparent E9E9E8E9E9E8


  • Transparent 34332F34332F
  • Transparent 3E3D393E3D39
  • Transparent 474643474643
  • Transparent 51504E51504E
  • Transparent 5A5A585A5A58
  • Transparent 646362646362
  • Transparent 6D6D6C6D6D6C
  • Transparent 777676777676


  • Transparent 1A1A161A1A16
  • Transparent 171613171613
  • Transparent 141310141310
  • Transparent 11100E11100E
  • Transparent 0D0D0B0D0D0B
  • Transparent 0A0A080A0A08
  • Transparent 070605070605
  • Transparent 030303030303

#21201B Color Patterns

  • transperent

    #21201B Gingham Checks

  • transperent

    #21201B Vertical Stripes Pattern

  • transperent

    #21201B Polka Dots Pattern

  • transperent

    #21201B Honeycomb Pattern

  • transperent

    #21201B Leaves Pattern

  • transperent

    #21201B Houndstooth Pattern

  • transperent

    #21201B Trellis Pattern

  • transperent

    #21201B Plaid Pattern

#21201B Color Interior Ideas

Pretty Photo frame on Eerie Black color drawing room interior textured wall

#21201B Color Drawing Room Textured Wall Paint Idea

Pretty Photo frame on Eerie Black color Living room wal color

#21201B Color Living Room Wall Paint Idea

Pretty Photo frame on Eerie Black color Bedroom interior wall color

#21201B Color Bedroom Wall Paint Idea

Pretty Photo frame on Eerie Black color kitchen interior wall color

#21201B Color Kitchen Wall Paint Idea

Color names have been derived from known and trusted lists OR have been formulated by us. They are close approximations and may not translate to exact names. Also, color is perceived and named differently in cultures and communities around the world. As per studies, only a handful of colors are interpretted and named in the same way across the globe.