Color

#233b3e

#233b3e
hex#233b3e
rgbrgb(35, 59, 62)
hslhsl(187, 28%, 19%)
oklchoklch(0.334 0.03 205.8)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0383

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e2623

#233e34 · #232d3e

#3e233b · #3b3e23

Split-complementary

Open in tool →

#3e232d · #3e3423

#34233e · #3e2623 · #2d3e23

Contrast

#233b3e as textRatioAAAA largeAAAFix
Aaon white
11.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #4b7f86 as the text (4.68:1)
  • AAA: use #629fa7 as the text (7.04:1)
  • AA: or shift the background to #a1a1a1 (4.6:1)
  • AAA: or shift the background to #c7c7c7 (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 #233b3e 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

#233b3e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233b3e
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 #233b3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233b3e-a2b8be-df4e83-1f262d-e9f1ee?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