Color

#101e89

#101e89
hex#101e89
rgbrgb(16, 30, 137)
hslhsl(233, 79%, 30%)
oklchoklch(0.321 0.173 267.2)
Closest name: Deepsea Kraken (#082599)Relative luminance 0.0284

Tints & shades

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

Harmonies

Complementary

Open in tool →

#897b10

#105b89 · #3e1089

#89101e · #1e8910

Split-complementary

Open in tool →

#893e10 · #5b8910

#89105b · #897b10 · #10893e

Contrast

#101e89 as textRatioAAAA largeAAAFix
Aaon white
13.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.57:1failfailfail
  • AA: use #5668eb as the text (4.58:1)
  • AAA: use #8490f1 as the text (7.24:1)
  • AA: or shift the background to #969696 (4.53:1)
  • AAA: or shift the background to #bdbdbd (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101e89 as the background.

Brands using this color

Fonts for this mood

#101e89 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101e89
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 #101e89 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101e89-9c9cc4-df884e-241f2d-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