# #451c1f

A color — warm, dark, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#451c1f`
- RGB: rgb(69, 28, 31)
- HSL: hsl(356, 42%, 19%)
- OKLCH: oklch(0.288 0.063 17.4)
- Relative luminance: 0.0219
- Nearest named color: Black-Hearted (#3e1825, Δ 2.514) — https://brandsweets.com/colors/black-hearted
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/451c1f

## Tints & shades

- Tints (toward white): #62282c, #7f3439, #9c4046, #b74e55, #c26b70, #cd8489, #d9a1a5, #e4bec0, #f0dbdc, #fcf8f8
- Shades (toward black): #411b1d, #3a181a, #361618, #2f1315, #2b1213, #240f10, #210d0f, #190a0b, #16090a, #0e0606

## Harmonies

- Complementary: #1c4542
- Analogous: #451c33, #452e1c
- Triadic: #1f451c, #1c1f45
- Split-complementary: #1c452e, #1c3345
- Tetradic: #33451c, #1c4542, #2e1c45

## Colors that go with #451c1f

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #451c1f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #451c1f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Wellness (https://brandsweets.com/palettes/warm#wellness), Subaru (https://brandsweets.com/colors/brands/subaru-com), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #451c1f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Harvest (https://brandsweets.com/palettes/warm#harvest), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #451c1f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Astro (https://brandsweets.com/colors/brands/astro-build), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #451c1f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #451c1f in 9 real palettes, including McDonald's's brand system and Maple, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Maple (https://brandsweets.com/palettes/warm#maple), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Tim Hortons's brand system and Headspace's brand system put Blue beside #451c1f, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Blush and Graphite Mono put Blush Pink beside #451c1f, as the supporting colour. Seen in: Blush (https://brandsweets.com/palettes/light#blush), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink

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

- On white (#ffffff): 14.59:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.44:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b9555c (4.52:1); AA: background → #8f8f8f (4.51:1); AAA: text → #cd8489 (7.26:1); AAA: background → #b5b5b5 (7.12:1)

## Brands using this color

- **Superhuman** — primary #441c24 (Δ 0.895) — https://brandsweets.com/colors/brands/superhuman-com
- **Superhuman** — secondary #421d24 (Δ 1.016) — https://brandsweets.com/colors/brands/superhuman-com
- **Tim Hortons** — primary #3f2021 (Δ 1.533) — https://brandsweets.com/colors/brands/timhortons-com

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- luxury: https://brandsweets.com/fonts/mood/luxury
- 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/451c1f-c49e9c-62cb91-2d241f-f1e9ee?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: "#451c1f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.