Color

#100f1a

#100f1a
hex#100f1a
rgbrgb(16, 15, 26)
hslhsl(245, 27%, 8%)
oklchoklch(0.175 0.023 288)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0053

Tints & shades

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

Harmonies

Complementary

Open in tool →

#191a0f

#0f131a · #150f1a

#1a100f · #0f1a10

Split-complementary

Open in tool →

#1a150f · #131a0f

#1a0f13 · #191a0f · #0f1a15

Contrast

#100f1a as textRatioAAAA largeAAAFix
Aaon white
19:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #7671ad as the text (4.74:1)
  • AAA: use #9591c0 as the text (7.09:1)
  • AA: or shift the background to #7d7d7d (4.62:1)
  • AAA: or shift the background to #9e9e9e (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100f1a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#100f1a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100f1a
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 #100f1a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100f1a-a49cc4-dfa54e-261f2d-e9ecf1?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