Color

#213045

#213045
hex#213045
rgbrgb(33, 48, 69)
hslhsl(215, 35%, 20%)
oklchoklch(0.306 0.043 256.9)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0287

Tints & shades

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

Harmonies

Complementary

Open in tool →

#453621

#214245 · #242145

#452130 · #304521

Split-complementary

Open in tool →

#452421 · #424521

#452142 · #453621 · #214524

Contrast

#213045 as textRatioAAAA largeAAAFix
Aaon white
13.35:1passpasspassPasses AAA — no fix needed.
Aaon black
1.57:1failfailfail
  • AA: use #5176a9 as the text (4.51:1)
  • AAA: use #7c98c0 as the text (7.11:1)
  • AA: or shift the background to #969696 (4.51:1)
  • AAA: or shift the background to #bdbdbd (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #213045 as the background.

Brands using this color

Fonts for this mood

#213045 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #213045
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 #213045 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/213045-9ca8c4-df5d4e-201f2d-e9f0f1?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