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Green and Yellow

Contrasting color combination with 4.78:1 contrast ratio

#008000
#FFFF00

Color Values

Green
HEX #008000
RGB 0, 128, 0
HSL 120, 100%, 25%
Yellow
HEX #FFFF00
RGB 255, 255, 0
HSL 60, 100%, 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 Green and Yellow is 60 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

4.78:1
Green background with Yellow text
AA normal text, AAA large text

UI Preview

Green surface

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

Yellow surface

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

Design Tokens

CSS Variables

:root {
  --color-a: #008000;
  --color-b: #FFFF00;
  --color-a-rgb: 0, 128, 0;
  --color-b-rgb: 255, 255, 0;
}

JSON

{
  "name": "Green and Yellow",
  "colors": [
    {
      "name": "Green",
      "hex": "#008000",
      "rgb": [
        0,
        128,
        0
      ]
    },
    {
      "name": "Yellow",
      "hex": "#FFFF00",
      "rgb": [
        255,
        255,
        0
      ]
    }
  ],
  "harmony": "Contrasting",
  "contrastRatio": 4.78
}

Explore These Colors

Frequently Asked Questions

Do green and yellow go together?

Yes. Green and Yellow 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 4.78:1, which passes AA for large text and UI components.

What is the contrast ratio between green and yellow?

The WCAG 2.1 contrast ratio between Green (#008000) and Yellow (#FFFF00) is 4.78:1. This passes AA for normal text and AAA for large text.

How do I use green and yellow 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 green and yellow?

Green has the hex code #008000 and RGB values rgb(0, 128, 0). Yellow has the hex code #FFFF00 and RGB values rgb(255, 255, 0). You can copy these directly into CSS or use the design tokens provided on this page.