Color
#309c64
#309c64rgb(48, 156, 100)hsl(149, 53%, 40%)oklch(0.618 0.129 156.3)Colors that go with #309c64
Charcoal, Crimson and 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 #309c64: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #309c64: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue #0000ff
shipped4 real palettes, including Kia's brand system and Instacart's brand system put Blue beside #309c64, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #309c64: 6 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Midnight Blue #191970
shipped5 real palettes, including Fintech Trust and Telehealth put Midnight Blue beside #309c64, as the text colour against it.
Royal Blue #4169e1
shippedRoyal Blue is paired with #309c64 in 7 real palettes, including Console Light and Telehealth, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #309c64 in 11 real palettes, including Subaru's brand system and Wellness, as that palette's text colour.
Medium Orchid #ba55d3
complementaryMedium Orchid sits directly opposite #309c64 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #309c64
Tints & shades
Harmonies
Contrast
| #309c64 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.46:1 | fail | pass | fail | |
Aaon black | 6.07:1 | pass | 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 #309c64 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 #309c64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/309c64-a2beb3-d459d4-1f2d2c-e9f1e9?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