Ember
Open in tool →Flame orange on charcoal — the sports and energy palette; one accent yellow for stats and highlights.
Color
#f35730
#f35730
hex
#f35730rgb
rgb(243, 87, 48)hsl
hsl(12, 89%, 57%)oklch
oklch(0.661 0.199 35)Closest name: Angry Flamingo (#f04e45)Relative luminance 0.2608
Colors that go with #f35730
Cadet Blue, Charcoal 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.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #f35730 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #f35730: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Amber #ffbf00
shippedAmber is paired with #f35730 in 9 real palettes, including Ember and Heatwave, as the accent.
Blue #0000ff
shipped7 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #f35730, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #f35730: 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 #f35730: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #f35730 in 8 real palettes, including Pizza Hut's brand system and Redfin's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #f35730: 15 real palettes, including PlanetScale's brand system and Strava's brand system, as the accent.
Real palettes that use #f35730
Tints & shades
Harmonies
Contrast
| #f35730 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.38:1 | fail | pass | fail | |
Aaon black | 6.22:1 | 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 #f35730 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#f35730 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #f35730
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 #f35730 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/f35730-c4a99c-62cbad-2d281f-f1e9ec?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