# #a10d02

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

## Values

- Hex: `#a10d02`
- RGB: rgb(161, 13, 2)
- HSL: hsl(4, 98%, 32%)
- OKLCH: oklch(0.45 0.178 30.1)
- Relative luminance: 0.0787
- Nearest named color: Bleeding Crimson (#9b1414, Δ 1.442) — https://brandsweets.com/colors/bleeding-crimson
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/a10d02

## Tints & shades

- Tints (toward white): #c50f02, #e31102, #fd1d0d, #fd392b, #fd5a4e, #fe7b72, #fe9790, #feb8b3, #ffd5d2, #fff6f5
- Shades (toward black): #920b01, #830a01, #790901, #6a0801, #5b0701, #4c0601, #3d0501, #320401, #230300, #140200

## Harmonies

- Complementary: #0297a2
- Analogous: #a20247, #a25c02
- Triadic: #02a20c, #0c02a2
- Split-complementary: #02a25c, #0247a2
- Tetradic: #47a202, #0297a2, #5c02a2

## Colors that go with #a10d02

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

- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #a10d02 — 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), Behance (https://brandsweets.com/colors/brands/behance-net), Chase (https://brandsweets.com/colors/brands/chase-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #a10d02 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron). — https://brandsweets.com/colors/teal
- **Crimson** #dc143c [pool] — Crimson is paired with #a10d02 in 6 real palettes, including State Farm's brand system and Wendy's's brand system, as the lead colour. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #a10d02: 5 real palettes, including State Farm's brand system and Campbell's's brand system, as the accent. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #a10d02 in 4 real palettes, including Fireside and Candlelight, as the accent. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Candlelight (https://brandsweets.com/palettes/warm#candlelight), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/goldenrod
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #a10d02 in 4 real palettes, including Fireside and Bookshop, as the supporting colour. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Darkroom (https://brandsweets.com/palettes/muted#darkroom). — https://brandsweets.com/colors/hunter-green
- **Slate Gray** #708090 [pool] — 5 real palettes, including Newsprint and Typewriter put Slate Gray beside #a10d02, as the supporting colour. Seen in: Newsprint (https://brandsweets.com/palettes/editorial#newsprint), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/slategray
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #a10d02: 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). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 8.16:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.57:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #e81202 (4.52:1); AA: background → #c2c2c2 (4.58:1); AAA: text → #fd6358 (7.1:1); AAA: background → #f0f0f0 (7.16:1)

## Brands using this color

- **State Farm** — secondary #a11b13 (Δ 1.224) — https://brandsweets.com/colors/brands/statefarm-com

## 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/a10d02-c4a39c-62cb9f-2d261f-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: "#a10d02" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.