# #e63d37

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

## Values

- Hex: `#e63d37`
- RGB: rgb(230, 61, 55)
- HSL: hsl(2, 78%, 56%)
- OKLCH: oklch(0.614 0.207 27.3)
- Relative luminance: 0.2044
- Nearest named color: Bacon Strips (#df3f32, Δ 1.443) — https://brandsweets.com/colors/bacon-strips
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e63d37

## Tints & shades

- Tints (toward white): #e94f49, #eb605c, #ee7672, #f08884, #f29a97, #f4aba9, #f7bdbb, #f9d3d2, #fce5e4, #fef6f6
- Shades (toward black): #e42721, #d1201a, #b61c16, #9f1814, #881511, #71110e, #5b0e0b, #400a08, #290605, #120302

## Harmonies

- Complementary: #37e0e6
- Analogous: #e63789, #e69537
- Triadic: #37e63d, #3d37e6
- Split-complementary: #37e695, #3789e6
- Tetradic: #89e637, #37e0e6, #9537e6

## Colors that go with #e63d37

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 #e63d37: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Audi (https://brandsweets.com/colors/brands/audi-com), 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 #e63d37 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Vercel (https://brandsweets.com/colors/brands/vercel). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e63d37: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wired (https://brandsweets.com/colors/brands/wired-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #e63d37 in 7 real palettes, including Google's brand system and McDonald's's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wired (https://brandsweets.com/colors/brands/wired-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Doordash's brand system and native Cybersecurity's brand system put Blue beside #e63d37, as the accent. Seen in: Doordash (https://brandsweets.com/colors/brands/doordash-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Glossier (https://brandsweets.com/colors/brands/glossier-com), Gap (https://brandsweets.com/colors/brands/gap-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e63d37: 5 real palettes, including Walgreens's brand system and NASA's brand system, as the accent. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e63d37: 19 real palettes, including ElevenLabs's brand system and Costco's brand system, as the accent. Seen in: ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Costco (https://brandsweets.com/colors/brands/costco-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #e63d37: 7 real palettes, including Google's brand system and Databricks's brand system, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Databricks (https://brandsweets.com/colors/brands/databricks-com), Figma (https://brandsweets.com/colors/brands/figma), Replit (https://brandsweets.com/colors/brands/replit). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.13:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e42721 (4.55:1); AA: background → #121212 (4.54:1); AAA: text → #ac1a15 (7.21:1)
- On black (#000000): 5.09:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ec6e69 (7:1)

## Brands using this color

- **Todoist** — accent #e44232 (Δ 0.987) — https://brandsweets.com/colors/brands/todoist-com
- **Todoist** — primary #e44434 (Δ 1.13) — https://brandsweets.com/colors/brands/todoist-com
- **The Ordinary** — secondary #e83f42 (Δ 1.152) — https://brandsweets.com/colors/brands/theordinary-com
- **Todoist** — secondary #e34432 (Δ 1.278) — https://brandsweets.com/colors/brands/todoist-com
- **Google** — secondary #ea4335 (Δ 1.367) — https://brandsweets.com/colors/brands/google-com
- **Redfin** — secondary #e43c44 (Δ 1.472) — https://brandsweets.com/colors/brands/redfin-com
- **Pizza Hut** — primary #ee3124 (Δ 1.99) — https://brandsweets.com/colors/brands/pizzahut-com

## Curated palettes containing it

- **Retro Pop** (playful, bold, warm) — #e63946, #457b9d, #f4a261, #fff4e0, #23201c — Fifties-diner red and steel blue with a peach — nostalgic pop that still passes contrast. — tool: https://brandsweets.com/palettes/new/e63946-457b9d-f4a261-fff4e0-23201c — collection: https://brandsweets.com/palettes/playful
- **Diner** (retro, vivid, playful, bold) — #e63946, #2a9d8f, #f4d35e, #fffdf5, #1d1d1b — Cherry red, mint-teal and butter yellow — chrome-and-vinyl retro; the red does the work, the teal cools it. — tool: https://brandsweets.com/palettes/new/e63946-2a9d8f-f4d35e-fffdf5-1d1d1b — collection: https://brandsweets.com/palettes/retro
- **Frost & Ember** (winter, bold, cool, vivid) — #1d3557, #a8dadc, #e63946, #f1faee — Navy and frost with one ember red — the classic cold-with-a-warm-accent structure, borrowed from a thousand ski posters. — tool: https://brandsweets.com/palettes/new/1d3557-a8dadc-e63946-f1faee — collection: https://brandsweets.com/palettes/winter
- **Tequila Sunrise** (sunset, vivid, bold, warm) — #e63946, #ff9f1c, #ffd60a, #fffaf3, #2a1a0e — Red through orange to yellow — the poured-drink gradient as flat tokens; use it left-to-right, never all at once. — tool: https://brandsweets.com/palettes/new/e63946-ff9f1c-ffd60a-fffaf3-2a1a0e — collection: https://brandsweets.com/palettes/sunset

## 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/e63d37-c4a29c-62cb9c-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: "#e63d37" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.