Color

#233b4d

#233b4d
hex#233b4d
rgbrgb(35, 59, 77)
hslhsl(206, 37%, 22%)
oklchoklch(0.341 0.044 242)
Closest name: Astral Nomad (#203943)Relative luminance 0.0402

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d3523

#234d4a · #23264d

#4d233b · #3b4d23

Split-complementary

Open in tool →

#4d2326 · #4d4a23

#4a234d · #4d3523 · #264d23

Contrast

#233b4d as textRatioAAAA largeAAAFix
Aaon white
11.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #4a7ba1 as the text (4.64:1)
  • AAA: use #709cbd as the text (7.18:1)
  • AA: or shift the background to #a1a1a1 (4.51:1)
  • AAA: or shift the background to #c9c9c9 (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 #233b4d 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

#233b4d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233b4d
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 #233b4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233b4d-9caec4-df4e56-1f212d-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