# #d03f01

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

## Values

- Hex: `#d03f01`
- RGB: rgb(208, 63, 1)
- HSL: hsl(18, 99%, 41%)
- OKLCH: oklch(0.575 0.19 37.4)
- Relative luminance: 0.1697
- Nearest named color: Bolognese (#bb4400, Δ 4.057) — https://brandsweets.com/colors/bolognese
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/d03f01

## Tints & shades

- Tints (toward white): #ef4801, #fe540b, #fe692a, #fe7f48, #fe9467, #fea680, #ffbb9f, #ffd1bd, #ffe3d6, #fff8f5
- Shades (toward black): #bc3901, #ad3401, #982e01, #842801, #752301, #601d00, #4c1700, #381100, #290c00, #140600

## Harmonies

- Complementary: #0192d0
- Analogous: #d0012a, #d0a701
- Triadic: #01d03f, #3f01d0
- Split-complementary: #01d0a7, #012ad0
- Tetradic: #2ad001, #0192d0, #a701d0

## Colors that go with #d03f01

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 #d03f01: 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
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #d03f01 — 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), Netflix (https://brandsweets.com/colors/brands/netflix), Wellness (https://brandsweets.com/palettes/warm#wellness), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/seagreen
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #d03f01: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), Wired (https://brandsweets.com/colors/brands/wired-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #d03f01 in 7 real palettes, including Trailhead and McDonald's's brand system, as the accent. Seen in: Trailhead (https://brandsweets.com/palettes/warm#trailhead), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Google (https://brandsweets.com/colors/brands/google-com), Maple (https://brandsweets.com/palettes/warm#maple). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Doordash's brand system and Tim Hortons's brand system put Blue beside #d03f01, as the accent. Seen in: Doordash (https://brandsweets.com/colors/brands/doordash-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Glossier (https://brandsweets.com/colors/brands/glossier-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #d03f01: 4 real palettes, including Diner and Clean Beauty, as the supporting colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Alpine (https://brandsweets.com/palettes/cool#alpine), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #d03f01: 5 real palettes, including Walgreens's brand system and Behance's brand system, as the accent. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Behance (https://brandsweets.com/colors/brands/behance-net), NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #d03f01 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), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 4.78:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a23101 (7.06:1)
- On black (#000000): 4.39:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d54101 (4.59:1); AA: background → #fafafa (4.58:1); AAA: text → #fe6625 (7.14:1)

## Brands using this color

- **Etsy** — secondary #cf4018 (Δ 0.796) — https://brandsweets.com/colors/brands/etsy-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/d03f01-c4ad9c-62cbb8-2d291f-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: "#d03f01" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.