Color
#c3c601
#c3c601rgb(195, 198, 1)hsl(61, 99%, 39%)oklch(0.798 0.175 110.9)Colors that go with #c3c601
Charcoal, Deep Sky Blue and Lilac 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 #c3c601: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Deep Sky Blue #00bfff
split-complementshippedDeep Sky Blue is a split-complement of #c3c601: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Lilac #c8a2c8
complementaryshippedLilac sits directly opposite #c3c601 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 Binance's brand system and Minecraft's brand system put Blue beside #c3c601, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #c3c601: 5 real palettes, including Ahrefs's brand system and Blueprint, as the accent.
Crimson #dc143c
shippedCrimson is paired with #c3c601 in 7 real palettes, including Tabloid and Wise's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #c3c601: 9 real palettes, including Wikipedia's brand system and Walmart's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #c3c601: 6 real palettes, including Google's brand system and Heatwave, as the lead colour.
Real palettes that use #c3c601
Tints & shades
Harmonies
Contrast
| #c3c601 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.84:1 | fail | fail | fail | |
Aaon black | 11.4:1 | 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 #c3c601 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 #c3c601 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/c3c601-babea2-4e92df-272d1f-f1ede9?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