Color
#155b31
#155b31rgb(21, 91, 49)hsl(144, 63%, 22%)oklch(0.418 0.097 152.4)Colors that go with #155b31
Charcoal, Royal Blue 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 #155b31: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #155b31 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shipped4 real palettes, including Rolex's brand system and Warp's brand system put Blue beside #155b31, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #155b31: 4 real palettes, including Xbox's brand system and Hinge's brand system, as the supporting colour.
Emerald Green #50c878
shippedEmerald Green is paired with #155b31 in 4 real palettes, including Neon's brand system and CircleCI's brand system, as the lead colour.
Orange Red #ff4500
shippedOrange Red is paired with #155b31 in 4 real palettes, including Neon's brand system and Clerk's brand system, as the accent.
Rust #b7410e
triadicshippedRust completes a triad with #155b31 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #155b31: 5 real palettes, including Pine & Birch and Darkroom, as the supporting colour.
Real palettes that use #155b31
Tints & shades
Harmonies
Contrast
| #155b31 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.16:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.57:1 | 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 #155b31 as the background.
Brands using this color
Fonts for this mood
#155b31 reads as vivid, dark, luxury. 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 #155b31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/155b31-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