Color
#b1fc31
#b1fc31rgb(177, 252, 49)hsl(82, 97%, 59%)oklch(0.908 0.227 128.9)Colors that go with #b1fc31
Violet, Blue and Charcoal 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.
Violet #ee82ee
complementaryshippedViolet sits directly opposite #b1fc31 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped3 real palettes, including Robinhood's brand system and Snapchat's brand system put Blue beside #b1fc31, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #b1fc31: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Red #ff0000
shippedRed is paired with #b1fc31 in 3 real palettes, including Wise's brand system and Heineken's brand system, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #b1fc31 in 3 real palettes, including Calvin Klein's brand system and Tommy Hilfiger's brand system, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #b1fc31 in two real palettes: Wise's brand system and Ferrari's brand system, as the accent.
Deep Pink #ff1493
shippedTwo real palettes: Arcade and JetBrains's brand system put Deep Pink beside #b1fc31, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #b1fc31: two real palettes: JetBrains's brand system and Star Wars's brand system, as the supporting colour.
Real palettes that use #b1fc31
Tints & shades
Harmonies
Contrast
| #b1fc31 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.25:1 | fail | fail | fail | |
Aaon black | 16.84:1 | 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 #b1fc31 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 #b1fc31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b1fc31-b0bea2-4e5fdf-222d1f-f1f0e9?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