Color
#4f4f87
#4f4f87rgb(79, 79, 135)hsl(240, 26%, 42%)oklch(0.454 0.09 282.2)Colors that go with #4f4f87
Charcoal, Steel Blue and Amber 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 #4f4f87: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #4f4f87's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #4f4f87 in 4 real palettes, including Warner Bros.'s brand system and McDonald's's brand system, as the accent.
Blue #0000ff
shipped6 real palettes, including Tesco's brand system and CVS's brand system put Blue beside #4f4f87, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #4f4f87 in 12 real palettes, including Wells Fargo's brand system and Walgreens's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #4f4f87: 13 real palettes, including HP's brand system and Dutch Bros's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #4f4f87: 4 real palettes, including Campbell's's brand system and Datadog's brand system, as the supporting colour.
Light Coral #f08080
shippedDesigners have shipped Light Coral with #4f4f87: 4 real palettes, including Target : Expect More. Pay Less.'s brand system and Cobalt Pop, as the supporting colour.
Real palettes that use #4f4f87
Tints & shades
Harmonies
Contrast
| #4f4f87 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.5:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.8:1 | 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 #4f4f87 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 #4f4f87 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4f4f87-a19cc4-df994e-251f2d-e9edf1?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