Diner
Open in tool →Cherry red, mint-teal and butter yellow — chrome-and-vinyl retro; the red does the work, the teal cools it.
Color
#efcf4d
#efcf4d
hex
#efcf4drgb
rgb(239, 207, 77)hsl
hsl(48, 84%, 62%)oklch
oklch(0.859 0.149 95.1)Closest name: Aurora (#ebd147)Relative luminance 0.6351
Colors that go with #efcf4d
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.
Deep Sky Blue #00bfff
split-complementshippedDeep Sky Blue is a split-complement of #efcf4d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Lilac #c8a2c8
complementaryshippedLilac sits directly opposite #efcf4d 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
shippedCornflower Blue is paired with #efcf4d in 6 real palettes, including NBA's brand system and Ahrefs's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #efcf4d in 6 real palettes, including Diner and Tabloid, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #efcf4d in 8 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #efcf4d in 4 real palettes, including Miro's brand system and Heatwave, as the accent — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #efcf4d in 4 real palettes, including Heatwave and Streetwear, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #efcf4d
Tints & shades
Harmonies
Contrast
| #efcf4d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.53:1 | fail | fail | fail | |
Aaon black | 13.7:1 | 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 #efcf4d as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#efcf4d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #efcf4d
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #efcf4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/efcf4d-c4c09c-62aacb-2a2d1f-f1ece9?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