Color

#3038cf

#3038cf
hex#3038cf
rgbrgb(48, 56, 207)
hslhsl(237, 62%, 50%)
oklchoklch(0.45 0.225 270.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0796

Colors that go with #3038cf

Charcoal, Sea Green and Steel 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 →

#cfc730

#3087cf · #7830cf

#cf3038 · #38cf30

Split-complementary

Open in tool →

#cf7830 · #87cf30

#cf3087 · #cfc730 · #30cf78

Contrast

#3038cf as textRatioAAAA largeAAAFix
Aaon white
8.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #6268da as the text (4.51:1)
  • AAA: use #8b90e4 as the text (7.21:1)
  • AA: or shift the background to #c2c2c2 (4.55:1)
  • AAA: or shift the background to #f0f0f0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3038cf 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

#3038cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3038cf
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 #3038cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3038cf-9f9cc4-df924e-251f2d-e9edf1?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