# #b23901

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

## Values

- Hex: `#b23901`
- RGB: rgb(178, 57, 1)
- HSL: hsl(19, 99%, 35%)
- OKLCH: oklch(0.517 0.166 38.8)
- Relative luminance: 0.1239
- Nearest named color: Rust (#b7410e, Δ 1.894) — https://brandsweets.com/colors/rust
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b23901

## Tints & shades

- Tints (toward white): #d04301, #f44e01, #fe5f16, #fe7434, #fe8c58, #fea176, #feb694, #ffcbb3, #ffe3d6, #fff8f5
- Shades (toward black): #a23401, #932f01, #842a01, #752501, #652001, #511a00, #421500, #331000, #240b00, #140600

## Harmonies

- Complementary: #017ab2
- Analogous: #b20121, #b29101
- Triadic: #01b239, #3901b2
- Split-complementary: #01b291, #0121b2
- Tetradic: #21b201, #017ab2, #9101b2

## Colors that go with #b23901

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 #b23901's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Vodafone (https://brandsweets.com/colors/brands/vodafone-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Huawei (https://brandsweets.com/colors/brands/huawei-com), Budweiser (https://brandsweets.com/colors/brands/budweiser-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #b23901 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Bose (https://brandsweets.com/colors/brands/bose-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #b23901 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Wellness (https://brandsweets.com/palettes/warm#wellness), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #b23901: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), Honda (https://brandsweets.com/colors/brands/honda-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #b23901 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Saffron (https://brandsweets.com/palettes/warm#saffron). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #b23901 in 5 real palettes, including Ember and Trailhead, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Maple (https://brandsweets.com/palettes/warm#maple), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #b23901, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b23901: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 6.04:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9d3201 (7.27:1)
- On black (#000000): 3.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d54401 (4.66:1); AA: background → #e0e0e0 (4.57:1); AAA: text → #fe631b (7.01:1)

## 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/b23901-c4ad9c-62cbb9-2d2a1f-f1e9eb?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: "#b23901" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.