Color

#023b97

#023b97
hex#023b97
rgbrgb(2, 59, 151)
hslhsl(217, 97%, 30%)
oklchoklch(0.385 0.16 260.7)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0538

Colors that go with #023b97

Charcoal, Crimson and Steel Blue 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 →

#975e02

#028597 · #140297

#97023b · #3b9702

Split-complementary

Open in tool →

#971402 · #859702

#970285 · #975e02 · #029714

Contrast

#023b97 as textRatioAAAA largeAAAFix
Aaon white
10.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #136cfb as the text (4.57:1)
  • AAA: use #5495fc as the text (7.08:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #023b97 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#023b97 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #023b97
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 #023b97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/023b97-9ca7c4-df624e-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