Color

#170503

#170503
hex#170503
rgbrgb(23, 5, 3)
hslhsl(6, 77%, 5%)
oklchoklch(0.148 0.036 32)
Closest name: Dwarf Fortress (#1d0200)Relative luminance 0.003

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#031517

#17030b · #170f03

#031705 · #050317

Split-complementary

Open in tool →

#03170f · #030b17

#0b1703 · #031517 · #0f0317

Contrast

#170503 as textRatioAAAA largeAAAFix
Aaon white
19.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #dd301d as the text (4.51:1)
  • AAA: use #eb7366 as the text (7.18:1)
  • AA: or shift the background to #7a7a7a (4.62:1)
  • AAA: or shift the background to #9c9c9c (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #170503 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#170503 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #170503
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #170503 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/170503-c4a59c-62cba3-2d271f-f1e9ec?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md