Color

#1b34b1

#1b34b1
hex#1b34b1
rgbrgb(27, 52, 177)
hslhsl(230, 74%, 40%)
oklchoklch(0.404 0.198 266.9)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0586

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b1981b

#1b7fb1 · #4d1bb1

#b11b34 · #34b11b

Split-complementary

Open in tool →

#b14d1b · #7fb11b

#b11b7f · #b1981b · #1bb14d

Contrast

#1b34b1 as textRatioAAAA largeAAAFix
Aaon white
9.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #526ae5 as the text (4.55:1)
  • AAA: use #7e91ec as the text (7.15:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b34b1 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

#1b34b1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b34b1
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 #1b34b1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b34b1-9c9ec4-df814e-231f2d-e9eef1?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