Color

#233b70

#233b70
hex#233b70
rgbrgb(35, 59, 112)
hslhsl(221, 52%, 29%)
oklchoklch(0.363 0.096 263.9)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0466

Tints & shades

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

Harmonies

Complementary

Open in tool →

#705823

#236270 · #322370

#70233c · #3c7023

Split-complementary

Open in tool →

#703223 · #627023

#702362 · #705823 · #237032

Contrast

#233b70 as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #4d73c7 as the text (4.59:1)
  • AAA: use #7795d4 as the text (7.03:1)
  • AA: or shift the background to #a8a8a8 (4.57:1)
  • AAA: or shift the background to #d1d1d1 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #233b70 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

#233b70 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233b70
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 #233b70 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233b70-9ca4c4-df6b4e-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