Color

#033a37

#033a37
hex#033a37
rgbrgb(3, 58, 55)
hslhsl(177, 90%, 12%)
oklchoklch(0.315 0.053 189)
Closest name: Rich Black (#004040)Relative luminance 0.0332

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a0306

#033a1c · #03213a

#37033a · #3a3703

Split-complementary

Open in tool →

#3a0321 · #3a1c03

#1c033a · #3a0306 · #213a03

Contrast

#033a37 as textRatioAAAA largeAAAFix
Aaon white
12.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #07837d as the text (4.55:1)
  • AAA: use #09aaa2 as the text (7.28:1)
  • AA: or shift the background to #9c9c9c (4.6:1)
  • AAA: or shift the background to #c2c2c2 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #033a37 as the background.

Brands using this color

Fonts for this mood

#033a37 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #033a37
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 #033a37 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/033a37-a2bcbe-d4599b-1f282d-e9f1ed?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