# #5b00bd

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

## Values

- Hex: `#5b00bd`
- RGB: rgb(91, 0, 189)
- HSL: hsl(269, 100%, 37%)
- OKLCH: oklch(0.421 0.234 293)
- Relative luminance: 0.059
- Nearest named color: Blurple (#5539cc, Δ 6.81) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/5b00bd

## Tints & shades

- Tints (toward white): #6a00db, #7900fa, #881aff, #9838ff, #ab5cff, #ba7aff, #ca99ff, #dab8ff, #ead6ff, #faf5ff
- Shades (toward black): #5400ad, #4a0099, #43008a, #3b007a, #34006b, #2a0057, #230047, #1b0038, #110024, #0a0014

## Harmonies

- Complementary: #61bd00
- Analogous: #0003bd, #ba00bd
- Triadic: #bd5b00, #00bd5b
- Split-complementary: #bdba00, #03bd00
- Tetradic: #bd0003, #61bd00, #00bdba

## Colors that go with #5b00bd

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

- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #5b00bd 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 #5b00bd: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #5b00bd: 3 real palettes, including Peacock's brand system and Blue Mono, as the accent. Seen in: Peacock (https://brandsweets.com/colors/brands/peacocktv-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/cornflowerblue
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #5b00bd, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/midnightblue
- **Tomato** #ff6347 [pool] — 3 real palettes, including dbt Labs's brand system and FedEx's brand system put Tomato beside #5b00bd, as the lead colour. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), FedEx (https://brandsweets.com/colors/brands/fedex-com), GitLab (https://brandsweets.com/colors/brands/gitlab). — https://brandsweets.com/colors/tomato
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #5b00bd — 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
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #5b00bd: 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 #5b00bd'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). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 9.63:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.18:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9b3dff (4.51:1); AA: background → #b3b3b3 (4.6:1); AAA: text → #b875ff (7.03:1); AAA: background → #dedede (7.16:1)

## Brands using this color

- **Zillow** — accent #6000b6 (Δ 1.666) — https://brandsweets.com/colors/brands/zillow-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/5b00bd-b49cc4-cbcb62-2c1f2d-e9e9f1?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: "#5b00bd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.