# #c31d79

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#c31d79`
- RGB: rgb(195, 29, 121)
- HSL: hsl(327, 74%, 44%)
- OKLCH: oklch(0.545 0.209 353.7)
- Relative luminance: 0.1386
- Nearest named color: Bottom of My Heart (#cc0077, Δ 1.948) — https://brandsweets.com/colors/bottom-of-my-heart
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/c31d79

## Tints & shades

- Tints (toward white): #d92086, #e13795, #e44ea1, #e868af, #ec7ebb, #ef95c6, #f3afd4, #f6c5e0, #fae0ee, #fef6fa
- Shades (toward black): #b11b6e, #a01863, #8e1558, #7c134d, #6a1042, #590d37, #470b2c, #350821, #230516, #12030b

## Harmonies

- Complementary: #1dc368
- Analogous: #bb1dc3, #c31d25
- Triadic: #79c31d, #1d79c3
- Split-complementary: #25c31d, #1dc3bb
- Tetradic: #c3bb1d, #1dc368, #1d25c3

## Colors that go with #c31d79

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

- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #c31d79'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), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Snyk (https://brandsweets.com/colors/brands/snyk-io). — https://brandsweets.com/colors/crimson
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #c31d79 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/teal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #c31d79: 7 real palettes, including Ulta Beauty's brand system and Chase's brand system, as the supporting colour. Seen in: Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Chase (https://brandsweets.com/colors/brands/chase-com), AT&T (https://brandsweets.com/colors/brands/att-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #c31d79 in 5 real palettes, including Dunkin''s brand system and AT&T's brand system, as the lead colour. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), AT&T (https://brandsweets.com/colors/brands/att-com), New Balance (https://brandsweets.com/colors/brands/newbalance-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/taupe
- **Forest Green** #228b22 [harmony, pool: split] — Forest Green is a split-complement of #c31d79: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/forestgreen
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #c31d79 in 3 real palettes, including Chase's brand system and Ubisoft's brand system, as the supporting colour. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Ubisoft (https://brandsweets.com/colors/brands/ubisoft-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #c31d79 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/steelblue
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #c31d79: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 5.57:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a41965 (7.23:1)
- On black (#000000): 3.77:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d92086 (4.5:1); AA: background → #e8e8e8 (4.54:1); AAA: text → #e868af (7.03:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- 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/c31d79-c19fae-66cb62-2d1f21-f1e9f1?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: "#c31d79" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.