Color
#623aa1
#623aa1rgb(98, 58, 161)hsl(263, 47%, 43%)oklch(0.452 0.159 297.5)Colors that go with #623aa1
Charcoal, Royal Blue and 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 #623aa1: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #623aa1's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped4 real palettes, including Zillow's brand system and Pixar's brand system put Blue beside #623aa1, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #623aa1 in 5 real palettes, including Gemstone and Netflix's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #623aa1: 5 real palettes, including Slack's brand system and Warbyparker's brand system, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #623aa1, as the lead colour.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #623aa1: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Taupe #483c32
shippedTaupe is paired with #623aa1 in 4 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour.
Real palettes that use #623aa1
Tints & shades
Harmonies
Contrast
| #623aa1 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.96:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.64:1 | 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 #623aa1 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
#623aa1 reads as cool, modern. 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 #623aa1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/623aa1-b09cc4-dfd04e-2b1f2d-e9eaf1?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