Nursery
Open in tool →Pastel coral, sky and butter — soft enough for a newborn brand, with warm brown text instead of harsh black.
Color
#503f3f
#503f3f
hex
#503f3frgb
rgb(80, 63, 63)hsl
hsl(0, 12%, 28%)oklch
oklch(0.386 0.024 18.2)Closest name: Black Truffle (#463d3e)Relative luminance 0.0562
Colors that go with #503f3f
Blue, Blush Pink and Cadet Blue 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.
Blue #0000ff
shipped8 real palettes, including Dunkin''s brand system and Jeep's brand system put Blue beside #503f3f, as the supporting colour.
Blush Pink #e8b4b8
shipped4 real palettes, including Nursery and Garden Wedding put Blush Pink beside #503f3f, as the lead colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #503f3f: 4 real palettes, including Paper & Pine and Clean Beauty, as the supporting colour.
Champagne #f7e7ce
shipped4 real palettes, including Bramble and Darkroom put Champagne beside #503f3f, as the text colour against it.
Copper #b87333
shippedDesigners have shipped Copper with #503f3f: 5 real palettes, including Notion's brand system and Bramble.
Crimson #dc143c
shippedCrimson is paired with #503f3f in 10 real palettes, including Dunkin''s brand system and Codecademy's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #503f3f: 11 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #503f3f was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #503f3f
Tints & shades
Harmonies
Contrast
| #503f3f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.89:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.12:1 | 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 #503f3f 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
#503f3f reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #503f3f
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 #503f3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/503f3f-c4a19c-62cb98-2d251f-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