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Aqua and Crimson

Complementary color combination with 7.03:1 contrast ratio

#0FF0FE
#8C000F

Color Values

Aqua
HEX #0FF0FE
RGB 15, 240, 254
HSL 184, 99%, 53%
Crimson
HEX #8C000F
RGB 140, 0, 15
HSL 354, 100%, 27%

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 Aqua and Crimson is 170 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

7.03:1
Aqua background with Crimson text
AAA all sizes

UI Preview

Aqua surface

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

Crimson surface

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

Design Tokens

CSS Variables

:root {
  --color-a: #0FF0FE;
  --color-b: #8C000F;
  --color-a-rgb: 15, 240, 254;
  --color-b-rgb: 140, 0, 15;
}

JSON

{
  "name": "Aqua and Crimson",
  "colors": [
    {
      "name": "Aqua",
      "hex": "#0FF0FE",
      "rgb": [
        15,
        240,
        254
      ]
    },
    {
      "name": "Crimson",
      "hex": "#8C000F",
      "rgb": [
        140,
        0,
        15
      ]
    }
  ],
  "harmony": "Complementary",
  "contrastRatio": 7.03
}

Explore These Colors

Frequently Asked Questions

Do aqua and crimson go together?

Yes. Aqua and Crimson 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 7.03:1, which passes AA for large text and UI components.

What is the contrast ratio between aqua and crimson?

The WCAG 2.1 contrast ratio between Aqua (#0FF0FE) and Crimson (#8C000F) is 7.03:1. This passes AAA for all text sizes.

How do I use aqua and crimson 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 aqua and crimson?

Aqua has the hex code #0FF0FE and RGB values rgb(15, 240, 254). Crimson has the hex code #8C000F and RGB values rgb(140, 0, 15). You can copy these directly into CSS or use the design tokens provided on this page.