Typewriter
Open in tool →Ink-black and ribbon-red on manila — the correspondence palette; all the vintage comes from the paper colour.
Color
#a33533
#a33533
hex
#a33533rgb
rgb(163, 53, 51)hsl
hsl(1, 52%, 42%)oklch
oklch(0.49 0.146 25.2)Closest name: brown (#a52a2a)Relative luminance 0.1057
Colors that go with #a33533
Royal Blue, Teal and Crimson 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #a33533 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #a33533 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #a33533 in 8 real palettes, including Wendy's's brand system and State Farm's brand system, as the lead colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #a33533 in 5 real palettes, including Olive Grove and Cider, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #a33533: 9 real palettes, including State Farm's brand system and Campbell's's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #a33533 in 4 real palettes, including Fireside and Harvest, as the accent.
Hunter Green #355e3b
shippedHunter Green is paired with #a33533 in 4 real palettes, including Fireside and Trailhead, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a33533: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a33533
Tints & shades
Harmonies
Contrast
| #a33533 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.74:1 | pass | pass | fail |
|
Aaon black | 3.11:1 | fail | 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 #a33533 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
#a33533 reads as warm. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #a33533
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 #a33533 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/a33533-c4a19c-62cb9a-2d261f-f1e9ed?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