# #0fa5db

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#0fa5db`
- RGB: rgb(15, 165, 219)
- HSL: hsl(196, 87%, 46%)
- OKLCH: oklch(0.678 0.135 231.2)
- Relative luminance: 0.3213
- Nearest named color: Blue Burst (#309cd0, Δ 2.627) — https://brandsweets.com/colors/blue-burst
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0fa5db

## Tints & shades

- Tints (toward white): #15b5ef, #2dbcf0, #4ac5f2, #62cdf4, #79d5f6, #91dcf7, #a9e4f9, #c6edfb, #def4fd, #f5fcfe
- Shades (toward black): #0e97c8, #0d88b5, #0b769d, #0a688a, #085a77, #074b64, #063d51, #042b39, #031d26, #010e13

## Harmonies

- Complementary: #db460f
- Analogous: #0fdbac, #0f3fdb
- Triadic: #db0fa5, #a5db0f
- Split-complementary: #db0f3f, #dbac0f
- Tetradic: #ac0fdb, #db460f, #3fdb0f

## Colors that go with #0fa5db

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 text near-black for #0fa5db: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lido (https://brandsweets.com/palettes/vivid#lido), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Blizzard (https://brandsweets.com/colors/brands/blizzard-com). — https://brandsweets.com/colors/charcoal
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #0fa5db: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Substack (https://brandsweets.com/colors/brands/substack-com), Replit (https://brandsweets.com/colors/brands/replit), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/tomato
- **Bronze** #cd7f32 [harmony, pool: complementary] — Bronze sits directly opposite #0fa5db on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/bronze
- **Amber** #ffbf00 [pool] — Amber is paired with #0fa5db in 8 real palettes, including Salesforce's brand system and Blueprint, as the accent. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), NBA (https://brandsweets.com/colors/brands/nba-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Unity's brand system and Warp's brand system put Blue beside #0fa5db, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Canva (https://brandsweets.com/colors/brands/canva-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #0fa5db in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #0fa5db: 7 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim
- **Light Sky Blue** #87cefa [pool] — Light Sky Blue is paired with #0fa5db in 4 real palettes, including Calm's brand system and Salesforce's brand system, as the supporting colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Netlify (https://brandsweets.com/colors/brands/netlify-com), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/lightskyblue

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

- On white (#ffffff): 2.83:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0c7da7 (4.66:1); AA: background → #303030 (4.67:1); AAA: text → #095d7c (7.32:1); AAA: background → #0a0a0a (7:1)
- On black (#000000): 7.43:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Elastic** — secondary #00a9e5 (Δ 1.633) — https://brandsweets.com/colors/brands/elastic-co

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/0fa5db-9cb5c4-df4e6e-1f232d-e9f1ef?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: "#0fa5db" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.