# #ff810a

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

## Values

- Hex: `#ff810a`
- RGB: rgb(255, 129, 10)
- HSL: hsl(29, 100%, 52%)
- OKLCH: oklch(0.734 0.184 52.9)
- Relative luminance: 0.3698
- Nearest named color: Atomic Orange (#f88605, Δ 1.566) — https://brandsweets.com/colors/atomic-orange
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ff810a

## Tints & shades

- Tints (toward white): #ff8e24, #ff9838, #ffa552, #ffb066, #ffbd80, #ffca99, #ffd5ad, #ffe2c7, #ffeddb, #fffaf5
- Shades (toward black): #f07400, #d66800, #c25e00, #a85100, #8f4500, #753900, #5c2c00, #472300, #2e1600, #140a00

## Harmonies

- Complementary: #0a89ff
- Analogous: #ff0a0e, #fffb0a
- Triadic: #0aff81, #810aff
- Split-complementary: #0afffb, #0a0eff
- Tetradic: #0eff0a, #0a89ff, #fb0aff

## Colors that go with #ff810a

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 #ff810a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Hermès (https://brandsweets.com/colors/brands/hermes-com), Amazon (https://brandsweets.com/colors/brands/amazon-com), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: complementary] — Deep Sky Blue sits directly opposite #ff810a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Cursor (https://brandsweets.com/colors/brands/cursor-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Amber** #ffbf00 [pool] — Amber is paired with #ff810a in 5 real palettes, including Ahrefs's brand system and Maple, as the supporting colour. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Maple (https://brandsweets.com/palettes/warm#maple), Ember (https://brandsweets.com/palettes/bold#ember), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Sketch's brand system and Readymag's brand system put Blue beside #ff810a, as the accent. Seen in: Sketch (https://brandsweets.com/colors/brands/sketch-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Glossier (https://brandsweets.com/colors/brands/glossier-com). — https://brandsweets.com/colors/blue
- **Burlywood** #deb887 [pool] — Burlywood is paired with #ff810a in 4 real palettes, including Chalkboard and Kiln, as the lead colour. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Polaroid (https://brandsweets.com/palettes/light#polaroid), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #ff810a: 4 real palettes, including Paper & Pine and Alpine, as the supporting colour. Seen in: Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Alpine (https://brandsweets.com/palettes/cool#alpine), Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #ff810a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ff810a: 11 real palettes, including Fivetran blue's brand system and Postman's brand system, as the supporting colour. Seen in: Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Postman (https://brandsweets.com/colors/brands/postman-com), Amazon (https://brandsweets.com/colors/brands/amazon-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 2.5:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #bd5b00 (4.51:1); AA: background → #383838 (4.69:1); AAA: text → #8a4300 (7.28:1); AAA: background → #171717 (7.17:1)
- On black (#000000): 8.4:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Elastic** — primary #fc8204 (Δ 0.586) — https://brandsweets.com/colors/brands/elastic-co
- **Reddit** — accent #fe7b0e (Δ 1.33) — https://brandsweets.com/colors/brands/reddit-com
- **Cloudflare** — primary #f6821f (Δ 1.58) — https://brandsweets.com/colors/brands/cloudflare
- **Burger King** — secondary #ff8732 (Δ 1.689) — https://brandsweets.com/colors/brands/bk-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/ff810a-c4b49c-62cbcb-2d2c1f-f1e9e9?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: "#ff810a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.