Color
#5b2cba
#5b2cbargb(91, 44, 186)hsl(260, 62%, 45%)oklch(0.447 0.205 290.7)Colors that go with #5b2cba
Charcoal, Royal Blue and Cornflower 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #5b2cba: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #5b2cba's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #5b2cba: 5 real palettes, including Blue Mono and Peacock's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #5b2cba in 6 real palettes, including Gemstone and Wells Fargo's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #5b2cba: 6 real palettes, including Unilever's brand system and Slack's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #5b2cba: 4 real palettes, including Datadog's brand system and MLB's brand system, as the accent.
Midnight Blue #191970
shipped8 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #5b2cba, as the lead colour.
Red #ff0000
shippedRed is paired with #5b2cba in 5 real palettes, including Twitch's brand system and Walgreens's brand system, as the accent.
Real palettes that use #5b2cba
Tints & shades
Harmonies
Contrast
| #5b2cba as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.35:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.51:1 | 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 #5b2cba as the background.
Brands using this color
Fonts for this mood
#5b2cba reads as cool, vivid, technical. 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 #5b2cba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5b2cba-ae9cc4-dfc94e-2a1f2d-e9ebf1?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