Electric Lime
Open in tool →One neon on white with black type — lime-and-black is the neon that works in daylight; the orange is a second gear.
Color
#ff2a00
#ff2a00
hex
#ff2a00rgb
rgb(255, 42, 0)hsl
hsl(10, 100%, 50%)oklch
oklch(0.641 0.246 31.6)Closest name: red (#ff0000)Relative luminance 0.2292
Colors that go with #ff2a00
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 #ff2a00: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #ff2a00 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 #ff2a00 in 5 real palettes, including Heatwave and Wired's brand system, as the supporting colour.
Blue #0000ff
shipped9 real palettes, including Pepsi's brand system and Gap's brand system put Blue beside #ff2a00, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #ff2a00: 10 real palettes, including ElevenLabs's brand system and Strava's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #ff2a00: 6 real palettes, including Databricks's brand system and Heatwave, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #ff2a00: 4 real palettes, including Vodafone's brand system and Nintendo's brand system, as the supporting colour.
Gold #ffd700
shippedGold shows up next to #ff2a00 in 8 real palettes, including Paddle's brand system and Streetwear, as the lead colour.
Real palettes that use #ff2a00
Tints & shades
Harmonies
Contrast
| #ff2a00 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.76:1 | fail | pass | fail | |
Aaon black | 5.58:1 | 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 #ff2a00 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#ff2a00 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #ff2a00
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 #ff2a00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/ff2a00-c4a79c-62cbaa-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