Color
#99bf31
#99bf31rgb(153, 191, 49)hsl(76, 59%, 47%)oklch(0.751 0.168 123.8)Colors that go with #99bf31
Blue, Charcoal and Taupe 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.
Blue #0000ff
shipped4 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #99bf31, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #99bf31: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Taupe #483c32
shippedTaupe is paired with #99bf31 in 13 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it.
Plum #dda0dd
complementaryPlum sits directly opposite #99bf31 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cornflower Blue #6495ed
split-complementshippedCornflower Blue is a split-complement of #99bf31: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #99bf31 in 3 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #99bf31 in 3 real palettes, including Citrus Grove and Learning App, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #99bf31: 3 real palettes, including Playground and Unity's brand system, as the supporting colour.
Real palettes that use #99bf31
Tints & shades
Harmonies
Contrast
| #99bf31 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.13:1 | fail | fail | fail | |
Aaon black | 9.85:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #99bf31 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 #99bf31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/99bf31-b3bea2-4e6edf-232d1f-f1efe9?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