Tabloid
Open in tool →Red, black and yellow on white is the loudest three-color system in print — use it when headlines are the product.
Color
#efcf3e
#efcf3e
hex
#efcf3ergb
rgb(239, 207, 62)hsl
hsl(49, 85%, 59%)oklch
oklch(0.858 0.158 96.1)Closest name: Aurora (#ebd147)Relative luminance 0.6332
Colors that go with #efcf3e
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 #efcf3e 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 #efcf3e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #efcf3e in 8 real palettes, including Tabloid and Wells Fargo's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #efcf3e: 10 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 #efcf3e: 6 real palettes, including Miro's brand system and Star Wars's brand system, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #efcf3e in 4 real palettes, including Olympics's brand system and Heineken's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Southwest Airlines's brand system and FIFA's brand system put Midnight Blue beside #efcf3e, as the supporting colour.
Real palettes that use #efcf3e
Tints & shades
Harmonies
Contrast
| #efcf3e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.54:1 | fail | fail | fail | |
Aaon black | 13.66:1 | 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 #efcf3e as the background.
Brands using this color
Palettes built around it
Garnet
Open in tool →Garnet, carnelian and citrine on a wine-black — the warm jewel set for spirits, theatre and jewellery itself.
Fonts for this mood
#efcf3e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #efcf3e
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 #efcf3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/efcf3e-c4c19c-4eaedf-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