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Plum and SlateGray

Contrasting color combination with 2.21:1 contrast ratio

#66386A
#708090

Color Values

Plum
HEX #66386A
RGB 102, 56, 106
HSL 295, 31%, 32%
SlateGray
HEX #708090
RGB 112, 128, 144
HSL 210, 13%, 50%

Harmony: Contrasting

These colors sit far enough apart on the wheel to create clear contrast without falling into a named harmony. The pairing works through difference rather than relationship, which suits designs that want variety over cohesion.

The hue angle between Plum and SlateGray is 85 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

2.21:1
Plum background with SlateGray text
Below AA — decorative use only

UI Preview

Plum surface

Sample text on a plum background demonstrates readability and visual hierarchy.

SlateGray surface

Sample text on a slategray background demonstrates readability and visual hierarchy.

Design Tokens

CSS Variables

:root {
  --color-a: #66386A;
  --color-b: #708090;
  --color-a-rgb: 102, 56, 106;
  --color-b-rgb: 112, 128, 144;
}

JSON

{
  "name": "Plum and SlateGray",
  "colors": [
    {
      "name": "Plum",
      "hex": "#66386A",
      "rgb": [
        102,
        56,
        106
      ]
    },
    {
      "name": "SlateGray",
      "hex": "#708090",
      "rgb": [
        112,
        128,
        144
      ]
    }
  ],
  "harmony": "Contrasting",
  "contrastRatio": 2.21
}

Explore These Colors

Frequently Asked Questions

Do plum and slategray go together?

Yes. Plum and SlateGray form a contrasting color combination. These colors sit far enough apart on the wheel to create clear contrast without falling into a named harmony. The pairing works through difference rather than relationship, which suits designs that want variety over cohesion. The pairing has a WCAG contrast ratio of 2.21:1, which is below the AA threshold for text — use it for decorative purposes rather than text readability.

What is the contrast ratio between plum and slategray?

The WCAG 2.1 contrast ratio between Plum (#66386A) and SlateGray (#708090) is 2.21:1. This ratio is below AA. Use the pairing for backgrounds, borders, and decorative elements rather than text-on-background combinations.

How do I use plum and slategray in design?

A safe starting point is the 60/30/10 rule: give one color about 60 percent of the surface area, the other about 30 percent, and reserve the remaining 10 percent for an accent or neutral. If one color is significantly darker, use it for text or structural elements and the lighter one for backgrounds. Test the result with our Contrast Checker if text is involved.

What are the hex and RGB values for plum and slategray?

Plum has the hex code #66386A and RGB values rgb(102, 56, 106). SlateGray has the hex code #708090 and RGB values rgb(112, 128, 144). You can copy these directly into CSS or use the design tokens provided on this page.