Cobalt Pop
Open in tool →One deep cobalt and one hot pink on white — a two-accent system for launches and campaign pages that need punch.
Color
#f3727f
#f3727f
hex
#f3727frgb
rgb(243, 114, 127)hsl
hsl(354, 84%, 70%)oklch
oklch(0.708 0.159 15.8)Closest name: Begonia (#fa6e79)Relative luminance 0.3262
Colors that go with #f3727f
Charcoal, Light Sea Green 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 #f3727f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Light Sea Green #20b2aa
complementaryshippedLight Sea Green sits directly opposite #f3727f 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 #f3727f in 5 real palettes, including Beach Hut and Ember, as the supporting colour.
Blue #0000ff
shipped5 real palettes, including Sketch's brand system and Monzo's brand system put Blue beside #f3727f, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #f3727f: 4 real palettes, including Alpine and Diner, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #f3727f in 6 real palettes, including Target : Expect More. Pay Less.'s brand system and Burger King's brand system, as the lead colour.
Deep Sky Blue #00bfff
split-complementshippedDeep Sky Blue is a split-complement of #f3727f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Denim #1560bd
shippedDesigners have shipped Denim with #f3727f: 8 real palettes, including Target : Expect More. Pay Less.'s brand system and Postman's brand system, as the accent.
Real palettes that use #f3727f
Tints & shades
Harmonies
Contrast
| #f3727f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.79:1 | fail | fail | fail | |
Aaon black | 7.52:1 | 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 #f3727f as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#f3727f reads as warm, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #f3727f
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 #f3727f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/f3727f-c49d9c-62cb8e-2d241f-f1e9ee?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