Color

#1c658d

#1c658d
hex#1c658d
rgbrgb(28, 101, 141)
hslhsl(201, 67%, 33%)
oklchoklch(0.482 0.094 237.9)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1148

Colors that go with #1c658d

Charcoal, Crimson and Royal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d431c

#1c8d7c · #1c2d8d

#8d1c65 · #658d1c

Split-complementary

Open in tool →

#8d1c2d · #8d7c1c

#7c1c8d · #8d431c · #2d8d1c

Contrast

#1c658d as textRatioAAAA largeAAAFix
Aaon white
6.37:1passpassfail
  • AAA: use #195c80 as the text (7.28:1)
Aaon black
3.3:1failpassfail
  • AA: use #237eaf as the text (4.67:1)
  • AAA: use #379fd7 as the text (7.1:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c658d 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

#1c658d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c658d
live endpoint

Point 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.

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

analyze #1c658d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c658d-9cb1c4-df4e62-1f222d-e9f1f0?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