Color
#337a51
#337a51rgb(51, 122, 81)hsl(145, 41%, 34%)oklch(0.523 0.097 155.5)Colors that go with #337a51
Charcoal, Crimson and Royal 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 #337a51: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #337a51: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #337a51 — 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 #337a51 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 Warp's brand system and Kia's brand system put Blue beside #337a51, as the supporting colour.
Champagne #f7e7ce
shipped4 real palettes, including Forest Floor and BrandSweets's brand system put Champagne beside #337a51, as that palette's text colour.
Copper #b87333
shippedDesigners have shipped Copper with #337a51: 4 real palettes, including Clay & Linen and Wellness, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #337a51: 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Real palettes that use #337a51
Tints & shades
Harmonies
Contrast
| #337a51 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.19:1 | pass | pass | fail |
|
Aaon black | 4.04:1 | 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 #337a51 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 #337a51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/337a51-a2beb1-cc59d4-1f2d2b-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