# #a4378f

A color — warm. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#a4378f`
- RGB: rgb(164, 55, 143)
- HSL: hsl(312, 50%, 43%)
- OKLCH: oklch(0.524 0.174 336.3)
- Relative luminance: 0.1261
- Nearest named color: Fandango (#b53389, Δ 3.491) — https://brandsweets.com/colors/fandango
- Moods: warm
- Page: https://brandsweets.com/colors/a4378f

## Tints & shades

- Tints (toward white): #bb3ea2, #c44fad, #cc66b8, #d279c1, #da90cb, #e0a3d4, #e8badf, #eecde8, #f6e4f3, #fcf7fb
- Shades (toward black): #953281, #862d74, #772867, #67225a, #5c1f50, #4d1a42, #3d1435, #2e0f28, #1f0a1b, #0f050d

## Harmonies

- Complementary: #37a44d
- Analogous: #8437a4, #a43758
- Triadic: #8fa437, #378fa4
- Split-complementary: #58a437, #37a484
- Tetradic: #a48437, #37a44d, #3758a4

## Colors that go with #a4378f

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

- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #a4378f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #a4378f: 5 real palettes, including Peacock and Hasbro's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Chase (https://brandsweets.com/colors/brands/chase-com), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/denim
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #a4378f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #a4378f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: The Ordinary (https://brandsweets.com/colors/brands/theordinary-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com). — https://brandsweets.com/colors/crimson
- **Teal** #008080 [harmony: split] — Teal is a split-complement of #a4378f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #a4378f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Orange** #ffa500 [pool] — Two real palettes: Rippling's brand system and Sunset Boulevard put Orange beside #a4378f, as the lead colour. Seen in: Rippling (https://brandsweets.com/colors/brands/rippling-com), Sunset Boulevard (https://brandsweets.com/palettes/warm#sunset-boulevard). — https://brandsweets.com/colors/orange
- **Plum** #dda0dd [pool] — Plum shows up next to #a4378f in two real palettes: Semrush's brand system and NYX Cosmetics's brand system, as the lead colour. Seen in: Semrush (https://brandsweets.com/colors/brands/semrush-com), NYX Cosmetics (https://brandsweets.com/colors/brands/nyxcosmetics-com). — https://brandsweets.com/colors/plum

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

- On white (#ffffff): 5.96:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #91307e (7.17:1)
- On black (#000000): 3.52:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c144a8 (4.66:1); AA: background → #e0e0e0 (4.52:1); AAA: text → #d175bf (7.01:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a4378f-c19fb6-80cb62-2d1f24-efe9f1?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: "#a4378f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.