Color

#890103

#890103
hex#890103
rgbrgb(137, 1, 3)
hslhsl(359, 99%, 27%)
oklchoklch(0.396 0.162 28.7)
Closest name: darkred (#8b0000)Relative luminance 0.0535

Tints & shades

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

Harmonies

Complementary

Open in tool →

#018987

#890147 · #894301

#038901 · #010389

Split-complementary

Open in tool →

#018943 · #014789

#478901 · #018987 · #430189

Contrast

#890103 as textRatioAAAA largeAAAFix
Aaon white
10.15:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #ef0105 as the text (4.68:1)
  • AAA: use #fe6264 as the text (7.15:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #890103 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

#890103 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #890103
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 #890103 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/890103-c4a09c-62cb96-2d251f-f1e9ed?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