Color
#565b99
#565b99rgb(86, 91, 153)hsl(236, 28%, 47%)oklch(0.496 0.099 278.7)Colors that go with #565b99
Charcoal, Amber 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 #565b99: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #565b99 in 6 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #565b99: 5 real palettes, including Fintech Trust and Glacier, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #565b99: 4 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #565b99 in 9 real palettes, including Amazon's brand system and Netflix's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #565b99: 5 real palettes, including Campbell's's brand system and AT&T's brand system, as the supporting colour.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #565b99 in 4 real palettes, including Fintech Trust and Indigo SaaS, as the accent.
Steel Blue #4682b4
analogousshippedSteel Blue is #565b99's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Real palettes that use #565b99
Tints & shades
Harmonies
Contrast
| #565b99 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.26:1 | pass | pass | fail |
|
Aaon black | 3.35:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #565b99 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #565b99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/565b99-9e9cc4-df8f4e-241f2d-e9eef1?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