brandsweets

Color

Astro Accent

#4bf3c8
hex#4bf3c8
rgbrgb(75, 243, 200)
hslhsl(165, 87%, 62%)
oklchoklch(0.868 0.15 171.8)
From Astro brand colorsRelative luminance 0.6977
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
4bf3c8f24a74

#f24a74

Analogous

Open in tool →
4bf3c84af2744ac8f2

#4af274 · #4ac8f2

Triadic

Open in tool →
4bf3c8c84af2f2c84a

#c84af2 · #f2c84a

Split-complementary

Open in tool →
4bf3c8f24ac8f2744a

#f24ac8 · #f2744a

Tetradic

Open in tool →
4bf3c8744af2f24a74c8f24a

#744af2 · #f24a74 · #c8f24a

Contrast

Astro Accent as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #098666 as the text (4.55:1)
  • AAA: use #07644d as the text (7.15:1)
  • AA: or shift the background to #5e5e5e (4.62:1)
  • AAA: or shift the background to #424242 (7.16:1)
Aaon black
14.95:1passpasspassPasses AAA — no fix needed.

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

Brands using this color

mcpConnect your agent — build around Astro Accent
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 #4bf3c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bf3c8-a2beba-d459b3-1f2b2d-e9f1eb?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