# #4c3f69

A color — cool, muted. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#4c3f69`
- RGB: rgb(76, 63, 105)
- HSL: hsl(259, 25%, 33%)
- OKLCH: oklch(0.4 0.071 297.4)
- Relative luminance: 0.0611
- Nearest named color: Haunted Candelabra (#57446a, Δ 2.554) — https://brandsweets.com/colors/haunted-candelabra
- Moods: cool, muted
- Page: https://brandsweets.com/colors/4c3f69

## Tints & shades

- Tints (toward white): #5d4d80, #6b5893, #7c69a5, #8d7cb1, #a093be, #b1a6c9, #c5bcd7, #d5cfe2, #e9e6f0, #f9f9fb
- Shades (toward black): #453960, #3f3456, #382e4d, #312843, #2c243d, #251f33, #1e1929, #171320, #100d16, #09080d

## Harmonies

- Complementary: #5c693f
- Analogous: #3f4769, #613f69
- Triadic: #694c3f, #3f694c
- Split-complementary: #69613f, #47693f
- Tetradic: #693f47, #5c693f, #3f6961

## Colors that go with #4c3f69

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

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #4c3f69's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Capital One (https://brandsweets.com/colors/brands/capitalone-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 6 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #4c3f69, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #4c3f69: 4 real palettes, including Bramble and Dusk, as the supporting colour. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Dusk (https://brandsweets.com/palettes/cool#dusk), Notion (https://brandsweets.com/colors/brands/notion), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #4c3f69 in 9 real palettes, including Codecademy's brand system and Marvel's brand system, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4c3f69: 9 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #4c3f69 in 4 real palettes, including Sapphire & Gold and Disney's brand system, as the supporting colour. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Disney (https://brandsweets.com/colors/brands/disney-com), Open House (https://brandsweets.com/palettes/clean#open-house), Fireside (https://brandsweets.com/palettes/dark#fireside). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 11 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #4c3f69, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Plaid (https://brandsweets.com/colors/brands/plaid-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #4c3f69: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 9.45:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.22:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7f6ca7 (4.61:1); AA: background → #b3b3b3 (4.51:1); AAA: text → #9e8fbc (7.11:1); AAA: background → #dedede (7.02:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4c3f69-ad9cc4-dfc74e-2a1f2d-e9ebf1?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: "#4c3f69" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.