Natural Indigo Color – #003740: Codes and Complete Breakdown
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The Natural Indigo color hex code is #003740, and it is composed of 0% red, 22% green and 25% blue.
Natural Indigo is a dark, vibrant, saturated, and cool color at 100% saturation. It has a contrast ratio of 12.96:1 against a white background, which passes WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Natural Indigo color (#003740) against light backgrounds.

Natural Indigo Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#003740
Natural Indigo Color Codes and Information
Here’s a complete breakdown of the color Natural Indigo, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #003740 |
| RGB | rgb(0,55,64) |
| HSL | hsl(188,100%,12.5%) |
| CMYK | 100, 14, 0, 75 |
| HSV | 188, 100, 25 |
| RGB % | 0, 22, 25 |
| XYZ | 2.3, 3.1, 5.3 |
| LAB | 20.4, -12.4, -10.2 |
| Color Category | Dark |
| Color Family | Blue |
| Saturation | 100% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 12.96 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 1.62 (fails WCAG AA) |
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