# #100523

A color — cool, vivid, dark, technical, modern, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#100523`
- RGB: rgb(16, 5, 35)
- HSL: hsl(262, 75%, 8%)
- OKLCH: oklch(0.157 0.061 296.4)
- Relative luminance: 0.0034
- Nearest named color: Mysterious Depths (#060929, Δ 2.734) — https://brandsweets.com/colors/mysterious-depths
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/100523

## Tints & shades

- Tints (toward white): #230b4c, #351174, #47169c, #5a1cc4, #6f2de1, #8b55e7, #a67eed, #c2a6f2, #ddcef8, #f9f6fe
- Shades (toward black): #100524, #0e041f, #0e041f, #0c041b, #0c041b, #0c041b, #0a0316, #0a0316, #080312, #080312

## Harmonies

- Complementary: #182405
- Analogous: #050924, #200524
- Triadic: #241005, #052410
- Split-complementary: #242005, #092405
- Tetradic: #240509, #182405, #052420

## Colors that go with #100523

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #100523: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Amazon (https://brandsweets.com/colors/brands/amazon-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #100523's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Penpot (https://brandsweets.com/colors/brands/penpot-app), Coinbase (https://brandsweets.com/colors/brands/coinbase), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #100523: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Kia (https://brandsweets.com/colors/brands/kia-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #100523 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Oatly (https://brandsweets.com/colors/brands/oatly-com), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #100523 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Clinic (https://brandsweets.com/palettes/clean#clinic), Redfin (https://brandsweets.com/colors/brands/redfin-com), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #100523 in 16 real palettes, including Southwest Airlines's brand system and Lemon Squeezy's brand system, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 19 real palettes, including League of Legends's brand system and Penpot's brand system put Blue beside #100523, as the supporting colour. Seen in: League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), Kia (https://brandsweets.com/colors/brands/kia-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #100523 in 10 real palettes, including Gemstone and Twitch's brand system, as the supporting colour. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Twitch (https://brandsweets.com/colors/brands/twitch-tv), Render (https://brandsweets.com/colors/brands/render-com), Neobank (https://brandsweets.com/palettes/vivid#neobank). — https://brandsweets.com/colors/blueviolet

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 19.66:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.07:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8b55e7 (4.55:1); AA: background → #7a7a7a (4.58:1); AAA: text → #a982ed (7.1:1); AAA: background → #9c9c9c (7.16:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/100523-af9cc4-dfce4e-2a1f2d-e9eaf1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#100523" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.