Color
#377b45
#377b45rgb(55, 123, 69)hsl(132, 38%, 35%)oklch(0.524 0.109 148.3)Colors that go with #377b45
Charcoal, Royal Blue and Dark Orchid 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 body-text near-black for #377b45: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #377b45 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Dark Orchid #9932cc
complementaryshippedDark Orchid sits directly opposite #377b45 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Kia's brand system and Warp's brand system put Blue beside #377b45, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #377b45: 4 real palettes, including Clay & Linen and Wellness, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #377b45 in 5 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #377b45: 6 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Rust #b7410e
triadicshippedRust completes a triad with #377b45 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #377b45
Tints & shades
Harmonies
Contrast
| #377b45 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.15:1 | pass | pass | fail |
|
Aaon black | 4.08:1 | 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 #377b45 as the background.
Brands using this color
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 #377b45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/377b45-a2beab-b64edf-1f2d28-ecf1e9?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