Color

#12233b

#12233b
hex#12233b
rgbrgb(18, 35, 59)
hslhsl(215, 53%, 15%)
oklchoklch(0.255 0.051 257.2)
Closest name: Dark Eclipse (#112244)Relative luminance 0.0165

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b2a12

#12373b · #15123b

#3b1223 · #233b12

Split-complementary

Open in tool →

#3b1512 · #373b12

#3b1237 · #3b2a12 · #123b15

Contrast

#12233b as textRatioAAAA largeAAAFix
Aaon white
15.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #4077c4 as the text (4.65:1)
  • AAA: use #6f98d3 as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.58:1)
  • AAA: or shift the background to #adadad (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12233b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#12233b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12233b
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 #12233b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12233b-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