Heatwave
Open in tool →Blaze orange and hot yellow with one cold blue — the high-noon palette; use the blue where the eye needs to rest.
Color
#fc5122
#fc5122
hex
#fc5122rgb
rgb(252, 81, 34)hsl
hsl(13, 97%, 56%)oklch
oklch(0.668 0.215 35.3)Closest name: orangered (#ff4500)Relative luminance 0.267
Colors that go with #fc5122
Charcoal, Cadet Blue and Amber 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 #fc5122: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #fc5122 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #fc5122 in 8 real palettes, including Heatwave and Ember, as the supporting colour.
Blue #0000ff
shipped7 real palettes, including Readymag's brand system and Glossier's brand system put Blue beside #fc5122, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #fc5122: 4 real palettes, including Tide's brand system and NASA's brand system, as the lead colour.
Cornflower Blue #6495ed
split-complementshippedCornflower Blue is a split-complement of #fc5122: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #fc5122 in 9 real palettes, including Pizza Hut's brand system and Wise's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #fc5122: 15 real palettes, including Strava's brand system and Soundcloud's brand system, as the accent.
Real palettes that use #fc5122
Tints & shades
Harmonies
Contrast
| #fc5122 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.31:1 | fail | pass | fail | |
Aaon black | 6.34:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fc5122 as the background.
Brands using this color
- Together AIprimary · #fc4c02 · Δ1.1
- Tideaccent · #fb4c06 · Δ1.103
- Readymagaccent · #ff5000 · Δ1.152
- Prepare your taste buds...primary · #fc5404 · Δ1.274
- Stravaprimary · #fc5404 · Δ1.274
- Substackprimary · #fc5404 · Δ1.274
- HubSpotsecondary · #ff4800 · Δ1.376
- Soundcloudsecondary · #ff5500 · Δ1.579
- Redditprimary · #ff4500 · Δ1.658
- Intercomsecondary · #ff5600 · Δ1.699
- Tumblraccent · #ff4930 · Δ1.748
- Cursorprimary · #f54e00 · Δ1.879
- Cursorsecondary · #f54e00 · Δ1.879
- Redditsecondary · #fc4301 · Δ1.972
Palettes built around it
Fonts for this mood
#fc5122 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #fc5122
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 #fc5122 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/fc5122-c4a99c-62cbaf-2d281f-f1e9eb?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