brandsweets

Color

#1805eb

#1805eb
hex#1805eb
rgbrgb(24, 5, 235)
hslhsl(245, 96%, 47%)
oklchoklch(0.431 0.29 266.4)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.063
CoolVividTechnicalModern
Open in palette toolCheck contrastWhat goes with it ↓

Colors that go with #1805eb

Charcoal, Crimson and Cobalt 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.

Real palettes that use #1805eb

Activision· brandAlaska Airlines· brandBBC· brandBinance· brand

Tints & shades

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

Harmonies

Complementary

Open in tool →
1805ebd8eb05

#d8eb05

Analogous

Open in tool →
1805eb0565eb8b05eb

#0565eb · #8b05eb

Triadic

Open in tool →
1805ebeb180505eb18

#eb1805 · #05eb18

Split-complementary

Open in tool →
1805ebeb8b0565eb05

#eb8b05 · #65eb05

Tetradic

Open in tool →
1805ebeb0565d8eb0505eb8b

#eb0565 · #d8eb05 · #05eb8b

Contrast

#1805eb as textRatioAAAA largeAAAFix
Aaon white
9.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #6c5ffc as the text (4.68:1)
  • AAA: use #9187fd as the text (7.09:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1805eb as the background.

Brands using this color

Fonts for this mood

#1805eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →
mcpConnect your agent — build around #1805eb
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 #1805eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1805eb-a49cc4-dfa54e-261f2d-e9ecf1?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