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DarkOrange and SlateGray

Complementary color combination with 1.74:1 contrast ratio

#FF8C00
#708090

Color Values

DarkOrange
HEX #FF8C00
RGB 255, 140, 0
HSL 33, 100%, 50%
SlateGray
HEX #708090
RGB 112, 128, 144
HSL 210, 13%, 50%

Harmony: Complementary

These colors sit opposite each other on the wheel, producing maximum visual contrast. Complementary pairings are vibrant and attention-grabbing, but a 70/30 split keeps them from shouting.

The hue angle between DarkOrange and SlateGray is 177 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

1.74:1
DarkOrange background with SlateGray text
Below AA — decorative use only

UI Preview

DarkOrange surface

Sample text on a darkorange 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: #FF8C00;
  --color-b: #708090;
  --color-a-rgb: 255, 140, 0;
  --color-b-rgb: 112, 128, 144;
}

JSON

{
  "name": "DarkOrange and SlateGray",
  "colors": [
    {
      "name": "DarkOrange",
      "hex": "#FF8C00",
      "rgb": [
        255,
        140,
        0
      ]
    },
    {
      "name": "SlateGray",
      "hex": "#708090",
      "rgb": [
        112,
        128,
        144
      ]
    }
  ],
  "harmony": "Complementary",
  "contrastRatio": 1.74
}

Explore These Colors

Frequently Asked Questions

Do darkorange and slategray go together?

Yes. DarkOrange and SlateGray form a complementary color combination. These colors sit opposite each other on the wheel, producing maximum visual contrast. Complementary pairings are vibrant and attention-grabbing, but a 70/30 split keeps them from shouting. The pairing has a WCAG contrast ratio of 1.74:1, which is below the AA threshold for text — use it for decorative purposes rather than text readability.

What is the contrast ratio between darkorange and slategray?

The WCAG 2.1 contrast ratio between DarkOrange (#FF8C00) and SlateGray (#708090) is 1.74:1. This ratio is below AA. Use the pairing for backgrounds, borders, and decorative elements rather than text-on-background combinations.

How do I use darkorange 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. Since these are complementary colors, lean toward a 70/25/5 split to keep the contrast from becoming overwhelming. Test the result with our Contrast Checker if text is involved.

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

DarkOrange has the hex code #FF8C00 and RGB values rgb(255, 140, 0). 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.