#645E71 Hex Code

Color Name: Granite Gray

What is hex #645E71 Color?

Granite Gray (Hex code: 645E71) Thumbnail

The color name of hex code #645E71 is Granite Gray. The RGB values are (100, 94, 113) which means it is composed of 33% red, 31% green and 37% blue. The CMYK color codes, used in printers, are C:12 M:17 Y:0 K:56. In the HSV/HSB scale, #645E71 has a hue of 259°, 17% saturation and a brightness value of 44%.
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.

Hex #645E71 Color Codes

Color NameGranite Gray
RGB Values(100, 94, 113)
CMYK Values(12%, 17%, 0%, 56%)
HSV/HSB Values(259°, 17%, 44%)
Closest Web Safe#666666
Inverse Color#9BA18E [Spanish Gray]
Closest Pantone®Cool Gray 10 C
Closest RAL7031 [Blue grey]
Complementary Color#6B715E [Axolotl]
#645E71 Converted to Grayscale Codes
Simple Average#666666
Weighted Average (Most Common)#626262
Weighted Average (Luma)#616161
Weighted Average (Gamma Adjusted)#A0A0A0

Hex #645E71 Color Palettes

Complementary color palette of 645E71. Complementary color is 6B715E

Complementary Palette

The complement of #645E71 is #6B715E which is called Axolotl. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #645E71 color is offered by #6B715E. 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.

Analogous color palette with (645E71, 6E5E71 and 5E6271)

Analogous Palette

The analogous colors of #645E71 are #6E5E71 and #5E6271, called Dim Gray and Black Coral, respectively. In the RGB color wheel, they are located to the right and left of #645E71 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.

Split Complementary color palette with (645E71, 716E5E and 62715E)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of #645E71 are #716E5E (Dim Gray) and #62715E (Axolotl). 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.

Triadic color palette with (645E71, 71645E and 5E7164)

Triadic Palette

#645E71 triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #71645E (Granite Gray) and #5E7164 (Axolotl) along with #645E71, 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.

Tetradic color palette with (645E71, 71645E, 6B715E and 5E6B71)

Tetradic Palette

The tetradic palette of #645E71 has #71645E (Granite Gray), #6B715E (Axolotl) and #5E6B71 (Cadet). 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.

Square color palette with (645E71, 715E62, 6B715E and 5E716E)

Square Palette

The square color palette of #645E71 contains #715E62 (Deep Taupe), #6B715E (Axolotl) and #5E716E (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.

Rainbow color

Hex #645E71 Rainbow Colors Palette

Our #645E71 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.

Shades of Granite Gray Color


  • Transperent 837e8d837E8D
  • Transperent 938e9c938E9C
  • Transperent a29eaaA29EAA
  • Transperent b2afb8B2AFB8
  • Transperent c1bfc6C1BFC6
  • Transperent d1cfd4D1CFD4
  • Transperent e0dfe3E0DFE3
  • Transperent f0eff1F0EFF1


  • Transperent 6a65746A6574
  • Transperent 6c68766C6876
  • Transperent 6f6c776F6C77
  • Transperent 726f79726F79
  • Transperent 75727a75727A
  • Transperent 78767c78767C
  • Transperent 7a797d7A797D
  • Transperent 7d7d7f7D7D7F


  • Transperent 504b5a504B5A
  • Transperent 46424f46424F
  • Transperent 3c38443C3844
  • Transperent 322f39322F39
  • Transperent 28262d28262D
  • Transperent 1e1c221E1C22
  • Transperent 141317141317
  • Transperent 0a090b0A090B

#645E71 Color Patterns

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    Granite Gray Gingham Checks

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    Granite Gray Vertical Stripes Pattern

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    Granite Gray Polka Dots Pattern

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    Granite Gray Honeycomb Pattern

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    Granite Gray Leaves Pattern

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    Granite Gray Houndstooth Pattern

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    Granite Gray Trellis Pattern

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    Granite Gray Plaid Pattern

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.