Color

#90fdd5

#90fdd5
hex#90fdd5
rgbrgb(144, 253, 213)
hslhsl(158, 96%, 78%)
oklchoklch(0.918 0.116 168)
Closest name: aquamarine (#7fffd4)Relative luminance 0.8098

Colors that go with #90fdd5

Charcoal, Hot Pink and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd91b9

#91fd9f · #91eefd

#d591fd · #fdd591

Split-complementary

Open in tool →

#fd91ee · #fd9f91

#9f91fd · #fd91b9 · #eefd91

Contrast

#90fdd5 as textRatioAAAA largeAAAFix
Aaon white
1.22:1failfailfail
  • AA: use #038756 as the text (4.56:1)
  • AAA: use #026440 as the text (7.24:1)
  • AA: or shift the background to #666666 (4.7:1)
  • AAA: or shift the background to #4a4a4a (7.26:1)
Aaon black
17.2:1passpasspassPasses 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 #90fdd5 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

#90fdd5 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #90fdd5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #90fdd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90fdd5-a2beb7-d459c2-1f2c2d-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