Indigo colour (#4B0082)
Indigo is dark a purple with hex code #4B0082, one of the 148 named colours every browser understands, so you can write color: ${name} directly in CSS. In RGB it is 75, 0, 130; in HSL 275°, 100%, 25%. Use the tool to explore shades and harmonies.
How to use the Indigo colour
- The colour is pre-filled; click Explore to see all formats, shades and harmonies.
- Edit the value to try a variation.
- Copy the code you need.
Indigo in every format
| Format | Value |
|---|---|
| HEX | #4B0082 |
| RGB | rgb(75, 0, 130) |
| RGB (0–1) | 0.294, 0.000, 0.510 |
| HSL | hsl(275, 100%, 25%) |
| CMYK (approx.) | 42%, 100%, 0%, 49% |
| CSS | color: indigo; |
Shades and tints of Indigo
Same hue and saturation, lightness from 90% to 10%:
#eaccff | #d499ff | #bf66ff | #aa33ff | #9500ff | #7700cc | #590099 | #3b0066 | #1e0033 |
Colours that go with Indigo
| Harmony | Colours | |
|---|---|---|
| Complementary | #358000 | |
| Triadic | #804a00 | #00804a |
| Analogous | #800075 | #0b0080 |
Similar named colours
The closest CSS named colours by RGB distance, useful when you need a keyword instead of a hex code or want a near match:
| Colour | HEX | Difference |
|---|---|---|
| purple | #800080 | close |
| midnightblue | #191970 | close |
| darkslateblue | #483d8b | close |
| rebeccapurple | #663399 | close |
| darkmagenta | #8b008b | close |
Accessibility
Contrast ratio of Indigo against white is 12.95:1 (passes WCAG AA for normal text) and against black 1.62:1 (fails). Use Indigo for text on white backgrounds.
Frequently asked questions
What is the hex code for Indigo?
#4B0082.
What is Indigo in RGB?
rgb(75, 0, 130).
What colour is complementary to Indigo?
#358000, directly opposite on the colour wheel.
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Last updated 2026-09-23.