Color

#283fd2

#283fd2
hex#283fd2
rgbrgb(40, 63, 210)
hslhsl(232, 68%, 49%)
oklchoklch(0.46 0.224 268.1)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0866

Colors that go with #283fd2

Charcoal, Sea Green 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d2bb28

#2894d2 · #6628d2

#d2283f · #3fd228

Split-complementary

Open in tool →

#d26628 · #94d228

#d22894 · #d2bb28 · #28d266

Contrast

#283fd2 as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #586adf as the text (4.54:1)
  • AAA: use #8390e7 as the text (7.11:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283fd2 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

#283fd2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283fd2
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 #283fd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283fd2-9c9dc4-df864e-231f2d-e9eef1?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