# #cb3a3a

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

## Values

- Hex: `#cb3a3a`
- RGB: rgb(203, 58, 58)
- HSL: hsl(0, 58%, 51%)
- OKLCH: oklch(0.565 0.182 25.2)
- Relative luminance: 0.1603
- Nearest named color: Bento Box (#cc363c, Δ 0.695) — https://brandsweets.com/colors/bento-box
- Moods: warm
- Page: https://brandsweets.com/colors/cb3a3a

## Tints & shades

- Tints (toward white): #d04e4e, #d45e5e, #da7272, #df8686, #e49a9a, #e9aaaa, #eebfbf, #f3d3d3, #f8e3e3, #fdf7f7
- Shades (toward black): #b93131, #a92d2d, #952828, #812222, #711e1e, #5d1919, #491313, #340e0e, #240a0a, #100404

## Harmonies

- Complementary: #3acbcb
- Analogous: #cb3a82, #cb823a
- Triadic: #3acb3a, #3a3acb
- Split-complementary: #3acb82, #3a82cb
- Tetradic: #82cb3a, #3acbcb, #823acb

## Colors that go with #cb3a3a

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 #cb3a3a: 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), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #cb3a3a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Behance (https://brandsweets.com/colors/brands/behance-net), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #cb3a3a: 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), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #cb3a3a in 7 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), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #cb3a3a, 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
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #cb3a3a: 5 real palettes, including Behance's brand system and Walgreens's brand system, as the supporting colour. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), MLB (https://brandsweets.com/colors/brands/mlb-com), NASA (https://brandsweets.com/colors/brands/nasa-gov). — https://brandsweets.com/colors/cobalt
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #cb3a3a in 5 real palettes, including Farmers Market and Magazine Ochre, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #cb3a3a: 18 real palettes, including Etsy's brand system and McDonald's's brand system, as the accent. Seen in: Etsy (https://brandsweets.com/colors/brands/etsy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.99:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a52c2c (7.01:1)
- On black (#000000): 4.21:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #ce4646 (4.59:1); AA: background → #f5f5f5 (4.58:1); AAA: text → #dc7a7a (7.11:1)

## Brands using this color

- **Casper Sleep** — primary #cc3b31 (Δ 1.034) — https://brandsweets.com/colors/brands/casper-com
- **Riot Games** — secondary #d1363a (Δ 1.173) — https://brandsweets.com/colors/brands/riotgames-com

## 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/cb3a3a-c4a19c-62cb98-2d251f-f1e9ed?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: "#cb3a3a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.