Color
#2b0551
#2b0551rgb(43, 5, 81)hsl(270, 88%, 17%)oklch(0.246 0.123 299.2)Colors that go with #2b0551
Cadet Blue, Cobalt Blue and Denim 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.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #2b0551 in 5 real palettes, including Open House and Arctic, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #2b0551 in 5 real palettes, including Blue Mono and Glacier, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #2b0551 in 6 real palettes, including Open House and Campus, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #2b0551 in 4 real palettes, including Open House and Sapphire & Gold, as the accent — a combination designers have actually shipped, not a computed rotation.
Powder Blue #b0e0e6
shippedPowder Blue is paired with #2b0551 in 4 real palettes, including Glacier and First Snow, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
analogousshippedRoyal Blue is #2b0551's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Slate Gray #708090
shippedSlate Gray is paired with #2b0551 in 5 real palettes, including Clinic and Slate Workspace, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #2b0551: softer than #000 and cool enough to feel like part of the same palette.
Real palettes that use #2b0551
Tints & shades
Harmonies
Contrast
| #2b0551 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16.89:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.24:1 | 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 #2b0551 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
#2b0551 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 #2b0551 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2b0551-b59cc4-c9cb62-2c1f2d-eae9f1?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