Color
#283f86
#283f86rgb(40, 63, 134)hsl(225, 54%, 34%)oklch(0.391 0.122 267.1)Colors that go with #283f86
Steel Blue, Crimson 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.
Steel Blue #4682b4
analogousshippedSteel Blue is #283f86's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Crimson #dc143c
shippedCrimson is paired with #283f86 in 5 real palettes, including Marvel's brand system and Frost & Ember, as the accent — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #283f86 in 7 real palettes, including Hasbro's brand system and General Mills's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #283f86 in 13 real palettes, including Fintech Trust and First Snow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #283f86 in 8 real palettes, including Carrefour's brand system and Nivea's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #283f86 in 4 real palettes, including Gillette's brand system and Dusk, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #283f86 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #283f86: softer than #000 and cool enough to feel like part of the same palette.
Real palettes that use #283f86
Tints & shades
Harmonies
Contrast
| #283f86 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.79:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.15:1 | 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 #283f86 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
#283f86 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 #283f86 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/283f86-9ca1c4-df754e-221f2d-e9eff1?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