Color

#0538b8

#0538b8
hex#0538b8
rgbrgb(5, 56, 184)
hslhsl(223, 95%, 37%)
oklchoklch(0.413 0.206 263.4)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0632

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b88505

#0591b8 · #2c05b8

#b80538 · #38b805

Split-complementary

Open in tool →

#b82c05 · #91b805

#b80591 · #b88505 · #05b82c

Contrast

#0538b8 as textRatioAAAA largeAAAFix
Aaon white
9.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #336bfa as the text (4.62:1)
  • AAA: use #6a93fb as the text (7.18:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0538b8 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

#0538b8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0538b8
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 #0538b8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0538b8-9ca3c4-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