# #8121ca

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

## Values

- Hex: `#8121ca`
- RGB: rgb(129, 33, 202)
- HSL: hsl(274, 72%, 46%)
- OKLCH: oklch(0.495 0.235 304.1)
- Relative luminance: 0.1002
- Nearest named color: Lilac Spring (#8822cc, Δ 1.448) — https://brandsweets.com/colors/lilac-spring
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/8121ca

## Tints & shades

- Tints (toward white): #8e28dc, #9a3ee0, #a758e4, #b36ee7, #be84eb, #ca9aef, #d6b0f2, #e3caf6, #efe0fa, #faf6fe
- Shades (toward black): #751eb8, #6a1ba7, #5c1891, #51157f, #46126e, #3b0f5c, #300c4b, #220935, #160623, #0b0312

## Harmonies

- Complementary: #6aca21
- Analogous: #2c21ca, #ca21be
- Triadic: #ca8121, #21ca81
- Split-complementary: #beca21, #21ca2c
- Tetradic: #ca2c21, #6aca21, #21beca

## Colors that go with #8121ca

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

- **Denim** #1560bd [pool] — Designers have shipped Denim with #8121ca: 4 real palettes, including Linkedin's brand system and Peacock, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Slack (https://brandsweets.com/colors/brands/slack-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #8121ca on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #8121ca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #8121ca's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #8121ca in 3 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md). — https://brandsweets.com/colors/taupe
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #8121ca — 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). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #8121ca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Crimson** #dc143c [pool] — Crimson is paired with #8121ca in two real palettes: Gemstone and Wells Fargo's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 6.99:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7e20c5 (7.24:1)
- On black (#000000): 3:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #a04be2 (4.6:1); AA: background → #d1d1d1 (4.58:1); AAA: text → #ba7bea (7.11:1)

## Curated palettes containing it

- **Gemstone** (jewel-tones, vivid, dark, luxury) — #0f766e, #7e22ce, #e11d48, #0f0a1a, #f5eef8 — Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic. — tool: https://brandsweets.com/palettes/new/0f766e-7e22ce-e11d48-0f0a1a-f5eef8 — collection: https://brandsweets.com/palettes/jewel-tones

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/8121ca-b79cc4-c2cb62-2d1f2d-eae9f1?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: "#8121ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.