Color
#21a12e
#21a12ergb(33, 161, 46)hsl(126, 66%, 38%)oklch(0.62 0.187 144.1)Colors that go with #21a12e
Charcoal, Blue and Crimson 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 #21a12e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Blue #0000ff
shipped5 real palettes, including Spotify's brand system and Instacart's brand system put Blue beside #21a12e, as the accent.
Crimson #dc143c
shippedCrimson is paired with #21a12e in 4 real palettes, including DuckDuckGo's brand system and Coinbase's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #21a12e: 5 real palettes, including Xbox's brand system and Intel's brand system, as the supporting colour.
Dodger Blue #1e90ff
triadicshippedDodger Blue completes a triad with #21a12e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
shippedRoyal Blue is paired with #21a12e in 5 real palettes, including Console Light and Telehealth, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #21a12e in 8 real palettes, including Instacart's brand system and Acer's brand system, as the lead colour.
Medium Orchid #ba55d3
complementaryMedium Orchid sits directly opposite #21a12e 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 #21a12e
Tints & shades
Harmonies
Contrast
| #21a12e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.39:1 | fail | pass | fail | |
Aaon black | 6.2:1 | 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 #21a12e as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #21a12e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21a12e-a2bea8-a74edf-1f2d27-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