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Cobalt Gray Color

HEX #66676B / RGB (102, 103, 107)

Gray stone stylish silver ring

What is Cobalt Gray Color?

Cobalt Gray (Hex code: 66676B) Thumbnail

Cobalt Gray has the hex code #66676B. The equivalent RGB values are (102, 103, 107), which means it is composed of 33% red, 33% green and 34% blue. The CMYK color codes, used in printers, are C:5 M:4 Y:0 K:58. In the HSV/HSB scale, Cobalt Gray has a hue of 228°, 5% saturation and a brightness value of 42%.
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.

Cobalt Gray is not part of the web colors list and, therefore, cannot be used by name in HTML and CSS code. The best way to apply the color to a web page is to put in the hex, RGB and/or HSL values. Please also note that the CMYK numbers mentioned on this page have been calculated from the hex code using well-known formulae and are only approximations.

Download Cobalt Gray Solid Color Background

Cobalt Gray Color Codes

Hex Code#66676B
RGB Values(102, 103, 107)
CMYK Values(5%, 4%, 0%, 58%)
HSV/HSB Values(228°, 5%, 42%)
Closest Web Safe#666666
Inverse Color#999894 [Spanish Gray]
Closest Pantone®Cool Gray 10 C
Closest RAL7005 [Mouse grey]
Complementary Color#6B6A66 [Dim Gray]
Cobalt Gray Converted to Grayscale Codes
Simple Average#686868
Weighted Average (Most Common)#676767
Weighted Average (Luma)#676767
Weighted Average (Gamma Adjusted)#A5A5A5

Cobalt Gray Color Palettes

Cobalt Gray is almost gray. We don't think there is any need to display the color palettes.
Complementary color palette of 66676B. Complementary color is 6B6A66

Complementary Palette

The complement of Cobalt Gray is Dim Gray with the hex code #6B6A66. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #66676B color is offered by #6B6A66. 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.

66676B 6B6A66
Analogous color palette with (66676B, 68666B and 666A6B)

Analogous Palette

The analogous colors of Cobalt Gray (#66676B) are Dim Gray (#68666B) and Dim Gray (#666A6B). In the RGB color wheel, these two analogous colors occur to the right and left of Cobalt Gray with a 30° separation on either side. An analogous color palette is extremely soothing to the eyes and works wonders if your main color is soft or pastel.

66676B 68666B 666A6B
Split Complementary color palette with (66676B, 6B6866 and 6A6B66)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of Cobalt Gray (#66676B) are #6B6866 (Dim Gray) and #6A6B66 (Dim Gray). 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.

66676B 6B6866 6A6B66
Triadic color palette with (66676B, 6B6667 and 676B66)

Triadic Palette

Cobalt Gray triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #6B6667 (Dim Gray) and #676B66 (Dim Gray) along with #66676B create a stunning and beautiful triadic palette with the maximum variation in hue and, therefore, offering the best possible contrast when taken together.

66676B 6B6667 676B66
Tetradic color palette with (66676B, 6B6667, 6B6A66 and 666B6A)

Tetradic Palette

The tetradic palette of Cobalt Gray has four colors - #6B6667 (Dim Gray), #6B6A66 (Dim Gray) and #666B6A (Dim Gray) in addition to the base color (#66676B). A tetradic color palette is complex and, in most cases, should not be used off-the-shelf. We suggest tweaking the colors slightly to achieve desired results.

66676B 6B6667 6B6A66 666B6A
Square color palette with (66676B, 6B666A, 6B6A66 and 666B68)

Square Palette

Cobalt Gray square color palette has #6B666A (Dim Gray), #6B6A66 (Dim Gray) and #666B68 (Dim Gray). 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.

66676B 6B666A 6B6A66 666B68
Rainbow color

Cobalt Gray Color Rainbow Palette

Our Cobalt Gray rainbow color palette is based on the RGB 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.

66676B 69666B 6B6668 6B6866 6A6B66 666B66 666B6B

Tints, Tones & Shades of Cobalt Gray Color


  • Transparent 858589858589
  • Transparent 949597949597
  • Transparent A3A4A6A3A4A6
  • Transparent B3B3B5B3B3B5
  • Transparent C2C2C4C2C2C4
  • Transparent D1D1D3D1D1D3
  • Transparent E0E1E1E0E1E1
  • Transparent F0F0F0F0F0F0


  • Transparent 6B6C6F6B6C6F
  • Transparent 6E6F716E6F71
  • Transparent 707173707173
  • Transparent 737476737476
  • Transparent 767678767678
  • Transparent 78797A78797A
  • Transparent 7B7B7C7B7B7C
  • Transparent 7D7E7E7D7E7E


  • Transparent 525256525256
  • Transparent 47484B47484B
  • Transparent 3D3E403D3E40
  • Transparent 333436333436
  • Transparent 29292B29292B
  • Transparent 1F1F201F1F20
  • Transparent 141515141515
  • Transparent 0A0A0B0A0A0B

Cobalt Gray Color Patterns

  • Transparent

    Cobalt Gray Gingham Checks

  • Transparent

    Cobalt Gray Vertical Stripes Pattern

  • Transparent

    Cobalt Gray Polka Dots Pattern

  • Transparent

    Cobalt Gray Honeycomb Pattern

  • Transparent

    Cobalt Gray Leaves Pattern

  • Transparent

    Cobalt Gray Houndstooth Pattern

  • Transparent

    Cobalt Gray Trellis Pattern

  • Transparent

    Cobalt Gray Plaid Pattern

Cobalt Gray Color Interior Ideas

Pretty Photo frame on Cobalt Gray color drawing room interior textured wall

Cobalt Gray Color Drawing Room Textured Wall Paint Idea

Pretty Photo frame on Cobalt Gray color Living room wal color

Cobalt Gray Color Living Room Wall Paint Idea

Pretty Photo frame on Cobalt Gray color Bedroom interior wall color

Cobalt Gray Color Bedroom Wall Paint Idea

Pretty Photo frame on Cobalt Gray color kitchen interior wall color

Cobalt Gray Color Kitchen Wall Paint Idea

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