Color
#2a3f83
#2a3f83rgb(42, 63, 131)hsl(226, 51%, 34%)oklch(0.39 0.117 267.8)Colors that go with #2a3f83
Steel Blue, Blue and Cornflower 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.
Steel Blue #4682b4
analogousshippedSteel Blue is #2a3f83's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped5 real palettes, including CVS's brand system and Alaska Airlines's brand system put Blue beside #2a3f83, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #2a3f83: 4 real palettes, including Blue Mono and Blizzard's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #2a3f83 in 12 real palettes, including Walgreens's brand system and Casper Sleep's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #2a3f83: 15 real palettes, including Unilever's brand system and Hasbro's brand system, as the accent.
Midnight Blue #191970
shipped16 real palettes, including Fintech Trust and Microsoft's brand system put Midnight Blue beside #2a3f83, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #2a3f83 in 5 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #2a3f83: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #2a3f83
Tints & shades
Harmonies
Contrast
| #2a3f83 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.83:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.14:1 | 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 #2a3f83 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
#2a3f83 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 #2a3f83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2a3f83-9ca1c4-df774e-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