Color
#531ddd
#531dddrgb(83, 29, 221)hsl(257, 77%, 49%)oklch(0.461 0.254 282.8)Colors that go with #531ddd
Charcoal, Denim and Cobalt 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 #531ddd: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
analogousshippedDenim is #531ddd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #531ddd: 7 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #531ddd: 5 real palettes, including Qualcomm's brand system and Blue Mono, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #531ddd in 5 real palettes, including Behance's brand system and Gemstone, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #531ddd: 5 real palettes, including Cargo's brand system and Readymag's brand system, as the lead colour.
Midnight Blue #191970
shipped10 real palettes, including Kraken's brand system and Purina Pro Plan's brand system put Midnight Blue beside #531ddd, as the lead colour.
Orange Red #ff4500
shippedOrange Red is paired with #531ddd in 8 real palettes, including Prepare your taste buds...'s brand system and Soundcloud's brand system, as the lead colour.
Real palettes that use #531ddd
Tints & shades
Harmonies
Contrast
| #531ddd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.12:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.59:1 | 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 #531ddd 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
#531ddd 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 #531ddd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/531ddd-ac9cc4-dfc24e-291f2d-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