# #721fef

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

## Values

- Hex: `#721fef`
- RGB: rgb(114, 31, 239)
- HSL: hsl(264, 87%, 53%)
- OKLCH: oklch(0.511 0.268 291.1)
- Relative luminance: 0.1079
- Nearest named color: Poisoning Purple (#7f01fe, Δ 3.241) — https://brandsweets.com/colors/poisoning-purple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/721fef

## Tints & shades

- Tints (toward white): #8137f1, #8d4af2, #9c62f4, #a875f5, #b78df7, #c3a0f8, #d2b7fa, #decbfb, #ede2fd, #f9f5fe
- Shades (toward black): #6510e5, #5b0ecd, #500db5, #460b9d, #3d0a8a, #330872, #28065b, #1d0543, #13032b, #080113

## Harmonies

- Complementary: #9cef1f
- Analogous: #1f34ef, #db1fef
- Triadic: #ef721f, #1fef72
- Split-complementary: #efdb1f, #34ef1f
- Tetradic: #ef1f34, #9cef1f, #1fefdb

## Colors that go with #721fef

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

- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #721fef: 4 real palettes, including Render's brand system and Kraken's brand system, as the supporting colour. Seen in: Render (https://brandsweets.com/colors/brands/render-com), Kraken (https://brandsweets.com/colors/brands/kraken-com), Calm (https://brandsweets.com/colors/brands/calm-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #721fef 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
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #721fef: 3 real palettes, including Mastodon hosted on mastodon.social's brand system and Qualcomm's brand system, as the supporting colour. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #721fef in 3 real palettes, including ClickUp's brand system and Stripe's brand system, as the supporting colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), Stripe (https://brandsweets.com/colors/brands/stripe), monday.com (https://brandsweets.com/colors/brands/monday-com). — https://brandsweets.com/colors/mediumslateblue
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Kraken's brand system and Lavender Haze put Midnight Blue beside #721fef, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Discord (https://brandsweets.com/colors/brands/discord). — https://brandsweets.com/colors/midnightblue
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #721fef: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/forestgreen
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #721fef's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/royalblue
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #721fef: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 6.65:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6c15ef (7.02:1)
- On black (#000000): 3.16:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #904ff3 (4.6:1); AA: background → #d6d6d6 (4.58:1); AAA: text → #ae7ef6 (7.11:1)

## Brands using this color

- **ClickUp** — primary #7612fa (Δ 1.803) — https://brandsweets.com/colors/brands/clickup-com
- **ClickUp** — accent #7612fa (Δ 1.803) — https://brandsweets.com/colors/brands/clickup-com

## 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/721fef-b19cc4-dfd34e-2b1f2d-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: "#721fef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.