Color
#378154
#378154rgb(55, 129, 84)hsl(144, 40%, 36%)oklch(0.544 0.102 154.3)Colors that go with #378154
Charcoal, Royal Blue and Medium Violet Red 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 #378154: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #378154 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Medium Violet Red #c71585
complementaryshippedMedium Violet Red sits directly opposite #378154 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Copper #b87333
shippedCopper is paired with #378154 in 5 real palettes, including Wellness and Riverbed, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #378154 in 6 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #378154 in 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #378154 in 4 real palettes, including Mid-Century and Sapphire & Gold, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #378154 in 4 real palettes, including Paramount+'s brand system and Tide Pool, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #378154
Tints & shades
Harmonies
Contrast
| #378154 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.74:1 | pass | pass | fail |
|
Aaon black | 4.43:1 | 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 #378154 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 #378154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/378154-a2beb0-ca59d4-1f2d2b-eaf1e9?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