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
#f5cc51
#f5cc51
hex
#f5cc51rgb
rgb(245, 204, 81)hsl
hsl(45, 89%, 64%)oklch
oklch(0.859 0.145 90.4)Closest name: Angry Pasta (#ffcc55)Relative luminance 0.6319
Colors that go with #f5cc51
Charcoal, Cornflower Blue and Deep Sky 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.
Cornflower Blue #6495ed
complementaryshippedCornflower Blue sits directly opposite #f5cc51 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue #00bfff
split-complementshippedDeep Sky Blue is a split-complement of #f5cc51: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #f5cc51 in 8 real palettes, including Diner and Wells Fargo's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #f5cc51: 11 real palettes, including McDonald's's brand system and Walmart's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #f5cc51: 5 real palettes, including Google's brand system and Miro's brand system, as the lead colour.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #f5cc51 in 4 real palettes, including Olympics's brand system and Undergrowth, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Southwest Airlines's brand system and FIFA's brand system put Midnight Blue beside #f5cc51, as the supporting colour.
Real palettes that use #f5cc51
Tints & shades
Harmonies
Contrast
| #f5cc51 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.54:1 | fail | fail | fail | |
Aaon black | 13.64:1 | 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 #f5cc51 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#f5cc51 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #f5cc51
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 #f5cc51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/f5cc51-c4be9c-62afcb-2b2d1f-f1ebe9?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