Color

#45a2b5

#45a2b5
hex#45a2b5
rgbrgb(69, 162, 181)
hslhsl(190, 45%, 49%)
oklchoklch(0.664 0.091 213.3)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.3044

Colors that go with #45a2b5

Charcoal, Terracotta and Amber 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.

Real palettes that use #45a2b5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b55745

#45b590 · #456ab5

#b545a2 · #a2b545

Split-complementary

Open in tool →

#b5456a · #b59045

#9045b5 · #b55745 · #6ab545

Contrast

#45a2b5 as textRatioAAAA largeAAAFix
Aaon white
2.96:1failfailfail
  • AA: use #357e8d as the text (4.65:1)
  • AAA: use #29606b as the text (7.05:1)
  • AA: or shift the background to #2e2e2e (4.58:1)
  • AAA: or shift the background to #000000 (7.09:1)
Aaon black
7.09:1passpasspassPasses 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 #45a2b5 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

#45a2b5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45a2b5
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 #45a2b5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45a2b5-a2b6be-df4e7c-1f252d-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