Golden Hour
Open in tool →Apricot into coral into plum — a sunset flattened to three tokens, with the plum doubling as the twilight text colour.
Color
#643555
#643555
hex
#643555rgb
rgb(100, 53, 85)hsl
hsl(319, 31%, 30%)oklch
oklch(0.4 0.081 340.3)Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0591
Colors that go with #643555
Teal, Crimson and Denim 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.
Teal #008080
complementaryshippedTeal sits directly opposite #643555 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 #643555 in 6 real palettes, including Lenovo's brand system and Dunkin''s brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #643555: 5 real palettes, including Hinge's brand system and HP's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Microsoft's brand system and Tide Pool put Midnight Blue beside #643555, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #643555: 4 real palettes, including Nursery and Macaron, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #643555 in 4 real palettes, including Console Light and Zoom's brand system, as the lead colour.
Dark Olive Green #556b2f
split-complementshippedDark Olive Green is a split-complement of #643555: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cream #fffdd0
neutralCream is the surface #643555 wants: a warm off-white that shares its undertone, so #643555 reads softer on it than on pure white.
Real palettes that use #643555
Tints & shades
Harmonies
Contrast
| #643555 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.62:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.18:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643555 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
#643555 reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #643555
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 #643555 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/643555-c19fb2-74cb62-2d1f23-f0e9f1?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