Color
#4b105b
#4b105brgb(75, 16, 91)hsl(287, 70%, 21%)oklch(0.314 0.131 317.8)Colors that go with #4b105b
Crimson, Denim and Midnight Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Crimson #dc143c
shippedCrimson is paired with #4b105b in 5 real palettes, including Marvel's brand system and Casper Sleep's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #4b105b: 5 real palettes, including Hinge's brand system and Heinz's brand system, as the accent.
Midnight Blue #191970
shipped5 real palettes, including Tide Pool and Visa's brand system put Midnight Blue beside #4b105b, as that palette's text colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #4b105b: 4 real palettes, including Macaron and Frost & Ember, as the supporting colour.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and Golden Hour put Tomato beside #4b105b, as the supporting colour.
Forest Green #228b22
complementaryForest Green sits directly opposite #4b105b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #4b105b: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
shippedRoyal Blue is paired with #4b105b in 3 real palettes, including Confluent's brand system and Discord's brand system, as the supporting colour.
Real palettes that use #4b105b
Tints & shades
Harmonies
Contrast
| #4b105b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.78:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.52:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b105b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#4b105b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #4b105b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4b105b-bd9fc1-abcb62-2d1f2a-ece9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md