Color
#e4e821
#e4e821rgb(228, 232, 33)hsl(61, 81%, 52%)oklch(0.899 0.192 111)Colors that go with #e4e821
Charcoal, Lilac and Cornflower 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 body-text near-black for #e4e821: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Lilac #c8a2c8
complementaryshippedLilac sits directly opposite #e4e821 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
shippedDesigners have shipped Cornflower Blue with #e4e821: 4 real palettes, including NBA's brand system and Ahrefs's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #e4e821 in 5 real palettes, including Lay's's brand system and Tequila Sunrise, as the accent.
Deep Sky Blue #00bfff
split-complementshippedDeep Sky Blue is a split-complement of #e4e821: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Denim #1560bd
shippedDesigners have shipped Denim with #e4e821: 6 real palettes, including Ikea's brand system and LEGO's brand system, as the accent.
Red #ff0000
shippedRed is paired with #e4e821 in 4 real palettes, including Paddle's brand system and Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #e4e821 in 7 real palettes, including Crayon Box and Citrus Grove, as the text colour against it.
Real palettes that use #e4e821
Tints & shades
Harmonies
Contrast
| #e4e821 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.32:1 | fail | fail | fail | |
Aaon black | 15.86:1 | 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 #e4e821 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 #e4e821 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/e4e821-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