Antique Steel

HEX #B1B6B7 / RGB (177, 182, 183)

What is Antique Steel Color?

Antique Steel (Hex code: B1B6B7) Thumbnail

Antique Steel has the hex code #B1B6B7. The equivalent RGB values are (177, 182, 183), which means it is composed of 33% red, 34% green and 34% blue. The CMYK color codes, used in printers, are C:3 M:1 Y:0 K:28. In the HSV/HSB scale, Antique Steel has a hue of 190°, 3% saturation and a brightness value of 72%.
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.

Antique steel is a dull gray color with a bit of blue. It is not part of the web colors list and cannot be used by name in HTML and CSS code. The color can be applied to web pages via its 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.

Antique Steel Color Codes

Hex Code#B1B6B7
RGB Values(177, 182, 183)
CMYK Values(3%, 1%, 0%, 28%)
HSV/HSB Values(190°, 3%, 72%)
Closest Web Safe#99CCCC
Inverse Color#4E4948 [Quartz]
Closest Pantone®Cool Gray 5 C
Closest RAL7038 [Agate grey]
Complementary Color#B7B2B1 [Philippine Silver]
Antique Steel Converted to Grayscale Codes
Simple Average#B5B5B5
Weighted Average (Most Common)#B5B5B5
Weighted Average (Luma)#B5B5B5
Weighted Average (Gamma Adjusted)#D4D4D4

Antique Steel Color Palettes

Antique Steel is almost gray. We don't think there is any need to display the color palettes.
Complementary color palette of B1B6B7. Complementary color is B7B2B1

Complementary Palette

The complement of Antique Steel is Philippine Silver with the hex code #B7B2B1. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #B1B6B7 color is offered by #B7B2B1. 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 (B1B6B7, B1B3B7 and B1B7B5)

Analogous Palette

The analogous colors of Antique Steel (#B1B6B7) are Philippine Silver (#B1B3B7) and Philippine Silver (#B1B7B5). In the RGB color wheel, these two analogous colors occur to the right and left of Antique Steel 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.

Split Complementary color palette with (B1B6B7, B7B1B3 and B7B5B1)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of Antique Steel (#B1B6B7) are #B7B1B3 (Philippine Silver) and #B7B5B1 (Philippine Silver). 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 (B1B6B7, B7B1B6 and B6B7B1)

Triadic Palette

Antique Steel triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #B7B1B6 (Philippine Silver) and #B6B7B1 (Philippine Silver) along with #B1B6B7 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 (B1B6B7, B7B1B6, B7B2B1 and B1B7B2)

Tetradic Palette

The tetradic palette of Antique Steel has four colors - #B7B1B6 (Philippine Silver), #B7B2B1 (Philippine Silver) and #B1B7B2 (Philippine Silver) in addition to the base color (#B1B6B7). 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.

Square color palette with (B1B6B7, B5B1B7, B7B2B1 and B3B7B1)

Square Palette

Antique Steel square color palette has #B5B1B7 (Philippine Silver), #B7B2B1 (Philippine Silver) and #B3B7B1 (Philippine Silver). 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

Antique Steel Color Rainbow Palette

Our Antique Steel 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.

Tints, Tones & Shades of Antique Steel Color


  • Transparent C1C5C5#C1C5C5
  • Transparent C8CCCD#C8CCCD
  • Transparent D0D3D4#D0D3D4
  • Transparent D8DBDB#D8DBDB
  • Transparent E0E2E2#E0E2E2
  • Transparent E8E9E9#E8E9E9
  • Transparent EFF0F1#EFF0F1
  • Transparent F7F8F8#F7F8F8


  • Transparent A7ABAC#A7ABAC
  • Transparent A2A6A7#A2A6A7
  • Transparent 9DA0A1#9DA0A1
  • Transparent 999B9C#999B9C
  • Transparent 949696#949696
  • Transparent 8F9091#8F9091
  • Transparent 8A8B8B#8A8B8B
  • Transparent 858586#858586


  • Transparent 8E9292#8E9292
  • Transparent 7C7F80#7C7F80
  • Transparent 6A6D6E#6A6D6E
  • Transparent 595B5C#595B5C
  • Transparent 474949#474949
  • Transparent 353737#353737
  • Transparent 232425#232425
  • Transparent 121212#121212

Antique Steel Color Patterns

  • Transparent

    Antique Steel Gingham Checks

  • Transparent

    Antique Steel Vertical Stripes Pattern

  • Transparent

    Antique Steel Polka Dots Pattern

  • Transparent

    Antique Steel Honeycomb Pattern

  • Transparent

    Antique Steel Leaves Pattern

  • Transparent

    Antique Steel Houndstooth Pattern

  • Transparent

    Antique Steel Trellis Pattern

  • Transparent

    Antique Steel Plaid Pattern