Color

#253b41

#253b41
hex#253b41
rgbrgb(37, 59, 65)
hslhsl(193, 27%, 20%)
oklchoklch(0.337 0.03 216.7)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.039

Tints & shades

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

Harmonies

Complementary

Open in tool →

#412b25

#254139 · #252d41

#41253b · #3b4125

Split-complementary

Open in tool →

#41252d · #413925

#392541 · #412b25 · #2d4125

Contrast

#253b41 as textRatioAAAA largeAAAFix
Aaon white
11.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #4e7b88 as the text (4.51:1)
  • AAA: use #6d9eab as the text (7.13:1)
  • AA: or shift the background to #a1a1a1 (4.56:1)
  • AAA: or shift the background to #c9c9c9 (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 #253b41 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

#253b41 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #253b41
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 #253b41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/253b41-a2b5be-df4e75-1f242d-e9f1ef?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