Color

#399504

#399504
hex#399504
rgbrgb(57, 149, 4)
hslhsl(98, 95%, 30%)
oklchoklch(0.591 0.183 138.5)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2237

Tints & shades

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

Harmonies

Complementary

Open in tool →

#600495

#829504 · #049517

#043995 · #950439

Split-complementary

Open in tool →

#170495 · #950482

#048295 · #600495 · #951704

Contrast

#399504 as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #338603 as the text (4.61:1)
  • AAA: use #266303 as the text (7.32:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.47:1passpassfail
  • AAA: use #43ae04 as the text (7.29:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #399504 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

#399504 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #399504
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 #399504 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/399504-a9bea2-644edf-1f2d20-f0f1e9?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