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Sienna and SkyBlue

Complementary color combination with 2.99:1 contrast ratio

#A9561E
#87CEEB

Color Values

Sienna
HEX #A9561E
RGB 169, 86, 30
HSL 24, 70%, 39%
SkyBlue
HEX #87CEEB
RGB 135, 206, 235
HSL 197, 71%, 73%

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 Sienna and SkyBlue is 173 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

2.99:1
Sienna background with SkyBlue text
Below AA — decorative use only

UI Preview

Sienna surface

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

SkyBlue surface

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

Design Tokens

CSS Variables

:root {
  --color-a: #A9561E;
  --color-b: #87CEEB;
  --color-a-rgb: 169, 86, 30;
  --color-b-rgb: 135, 206, 235;
}

JSON

{
  "name": "Sienna and SkyBlue",
  "colors": [
    {
      "name": "Sienna",
      "hex": "#A9561E",
      "rgb": [
        169,
        86,
        30
      ]
    },
    {
      "name": "SkyBlue",
      "hex": "#87CEEB",
      "rgb": [
        135,
        206,
        235
      ]
    }
  ],
  "harmony": "Complementary",
  "contrastRatio": 2.99
}

Explore These Colors

Frequently Asked Questions

Do sienna and skyblue go together?

Yes. Sienna and SkyBlue 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 2.99:1, which is below the AA threshold for text — use it for decorative purposes rather than text readability.

What is the contrast ratio between sienna and skyblue?

The WCAG 2.1 contrast ratio between Sienna (#A9561E) and SkyBlue (#87CEEB) is 2.99:1. This ratio is below AA. Use the pairing for backgrounds, borders, and decorative elements rather than text-on-background combinations.

How do I use sienna and skyblue 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 sienna and skyblue?

Sienna has the hex code #A9561E and RGB values rgb(169, 86, 30). SkyBlue has the hex code #87CEEB and RGB values rgb(135, 206, 235). You can copy these directly into CSS or use the design tokens provided on this page.