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Lime and Sienna

Contrasting color combination with 4.23:1 contrast ratio

#AAFF32
#A9561E

Color Values

Lime
HEX #AAFF32
RGB 170, 255, 50
HSL 85, 100%, 60%
Sienna
HEX #A9561E
RGB 169, 86, 30
HSL 24, 70%, 39%

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 Lime and Sienna is 61 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

4.23:1
Lime background with Sienna text
AA large text only

UI Preview

Lime surface

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

Sienna surface

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

Design Tokens

CSS Variables

:root {
  --color-a: #AAFF32;
  --color-b: #A9561E;
  --color-a-rgb: 170, 255, 50;
  --color-b-rgb: 169, 86, 30;
}

JSON

{
  "name": "Lime and Sienna",
  "colors": [
    {
      "name": "Lime",
      "hex": "#AAFF32",
      "rgb": [
        170,
        255,
        50
      ]
    },
    {
      "name": "Sienna",
      "hex": "#A9561E",
      "rgb": [
        169,
        86,
        30
      ]
    }
  ],
  "harmony": "Contrasting",
  "contrastRatio": 4.23
}

Explore These Colors

Frequently Asked Questions

Do lime and sienna go together?

Yes. Lime and Sienna 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 4.23:1, which passes AA for large text but not for body text.

What is the contrast ratio between lime and sienna?

The WCAG 2.1 contrast ratio between Lime (#AAFF32) and Sienna (#A9561E) is 4.23:1. This passes AA for large text (18pt+ or 14pt+ bold) but not for normal-sized body text.

How do I use lime and sienna 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 lime and sienna?

Lime has the hex code #AAFF32 and RGB values rgb(170, 255, 50). Sienna has the hex code #A9561E and RGB values rgb(169, 86, 30). You can copy these directly into CSS or use the design tokens provided on this page.