Color
#374a90
#374a90rgb(55, 74, 144)hsl(227, 45%, 39%)oklch(0.432 0.117 269.5)Colors that go with #374a90
Charcoal, Sea Green and Steel 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 #374a90: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #374a90 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is #374a90's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped7 real palettes, including CVS's brand system and Tesco's brand system put Blue beside #374a90, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #374a90 in 14 real palettes, including Walgreens's brand system and Wells Fargo's brand system, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #374a90: 6 real palettes, including Campbell's's brand system and MLB's brand system, as the supporting colour.
Midnight Blue #191970
shipped19 real palettes, including First Snow and Fintech Trust put Midnight Blue beside #374a90, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #374a90 in 6 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
Real palettes that use #374a90
Tints & shades
Harmonies
Contrast
| #374a90 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.25:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.54:1 | 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 #374a90 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
#374a90 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 #374a90 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/374a90-9ca0c4-df7a4e-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