Color

#1b406a

#1b406a
hex#1b406a
rgbrgb(27, 64, 106)
hslhsl(212, 59%, 26%)
oklchoklch(0.367 0.084 253.5)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0494

Tints & shades

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

Harmonies

Complementary

Open in tool →

#69451b

#1b6769 · #1e1b69

#691b40 · #40691b

Split-complementary

Open in tool →

#691e1b · #67691b

#691b67 · #69451b · #1b691e

Contrast

#1b406a as textRatioAAAA largeAAAFix
Aaon white
10.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #3276c3 as the text (4.52:1)
  • AAA: use #659ad7 as the text (7.16:1)
  • AA: or shift the background to #ababab (4.6:1)
  • AAA: or shift the background to #d4d4d4 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b406a 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

#1b406a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b406a
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 #1b406a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b406a-9caac4-df564e-1f202d-e9f1f1?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