Color

#2b575f

#2b575f
hex#2b575f
rgbrgb(43, 87, 95)
hslhsl(189, 38%, 27%)
oklchoklch(0.429 0.05 210.8)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0816

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f332b

#2b5f4d · #2b3d5f

#5f2b57 · #575f2b

Split-complementary

Open in tool →

#5f2b3d · #5f4d2b

#4d2b5f · #5f332b · #3d5f2b

Contrast

#2b575f as textRatioAAAA largeAAAFix
Aaon white
7.98:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #3e7e89 as the text (4.55:1)
  • AAA: use #4fa1b0 as the text (7.06:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b575f 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

#2b575f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b575f
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 #2b575f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b575f-a2b7be-df4e7e-1f252d-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