Coastal
Open in tool →Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.
Color
#efc667
#efc667
hex
#efc667rgb
rgb(239, 198, 103)hsl
hsl(42, 81%, 67%)oklch
oklch(0.844 0.123 86.3)Closest name: Ancient Treasure (#e7d082)Relative luminance 0.5972
Colors that go with #efc667
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 #efc667: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Lilac #c8a2c8
complementaryshippedLilac sits directly opposite #efc667 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped4 real palettes, including Coffee Bar and Midnight Luxe put Champagne beside #efc667, as that palette's text colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #efc667: 6 real palettes, including NBA's brand system and Blueprint, as the accent.
Crimson #dc143c
shippedCrimson is paired with #efc667 in 6 real palettes, including Diner and Tabloid, as the lead colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #efc667 in 5 real palettes, including Farmers Market and Undergrowth, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #efc667: 9 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the lead colour.
Real palettes that use #efc667
Tints & shades
Harmonies
Contrast
| #efc667 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.62:1 | fail | fail | fail | |
Aaon black | 12.94:1 | 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 #efc667 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#efc667 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #efc667
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 #efc667 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/efc667-c4bc9c-62b4cb-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