Color

#10348e

#10348e
hex#10348e
rgbrgb(16, 52, 142)
hslhsl(223, 80%, 31%)
oklchoklch(0.365 0.155 263.7)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0452

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e6a10

#10738e · #2b108e

#8e1034 · #348e10

Split-complementary

Open in tool →

#8e2b10 · #738e10

#8e1073 · #8e6a10 · #108e2b

Contrast

#10348e as textRatioAAAA largeAAAFix
Aaon white
11.03:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #3e6fea as the text (4.67:1)
  • AAA: use #7195ef as the text (7.25:1)
  • AA: or shift the background to #a6a6a6 (4.53:1)
  • AAA: or shift the background to #cfcfcf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10348e 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

#10348e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10348e
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 #10348e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10348e-9ca3c4-df704e-211f2d-e9eff1?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