# #015cf9

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

## Values

- Hex: `#015cf9`
- RGB: rgb(1, 92, 249)
- HSL: hsl(218, 99%, 49%)
- OKLCH: oklch(0.54 0.245 261.8)
- Relative luminance: 0.145
- Nearest named color: Blue Ribbon (#0066ff, Δ 2.433) — https://brandsweets.com/colors/blue-ribbon
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/015cf9

## Tints & shades

- Tints (toward white): #166bfe, #2f7bfe, #488bfe, #629bfe, #7babfe, #8fb8fe, #a9c8ff, #c2d8ff, #dbe8ff, #f5f9ff
- Shades (toward black): #0154e4, #014bcb, #0144b7, #013a9d, #013389, #012970, #00225b, #001842, #00112e, #000814

## Harmonies

- Complementary: #f99e01
- Analogous: #01d8f9, #2201f9
- Triadic: #f9015c, #5cf901
- Split-complementary: #f92201, #d8f901
- Tetradic: #f901d8, #f99e01, #01f922

## Colors that go with #015cf9

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 #015cf9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Zoom (https://brandsweets.com/colors/brands/zoom-us), Docker (https://brandsweets.com/colors/brands/docker-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #015cf9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Toyota (https://brandsweets.com/colors/brands/toyota-com), Chase (https://brandsweets.com/colors/brands/chase-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #015cf9 in 6 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Dropbox's brand system and Headspace's brand system put Blue beside #015cf9, as the accent. Seen in: Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #015cf9: 10 real palettes, including Nokia's brand system and Nivea's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #015cf9: 7 real palettes, including Roblox's brand system and Webflow's brand system, as the supporting colour. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), NBA (https://brandsweets.com/colors/brands/nba-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #015cf9: 6 real palettes, including Elastic's brand system and Warp's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Warp (https://brandsweets.com/colors/brands/warp-dev), Calm (https://brandsweets.com/colors/brands/calm-com), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #015cf9: 9 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.38:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #014dd0 (7.06:1)
- On black (#000000): 3.9:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #166bfe (4.57:1); AA: background → #ebebeb (4.52:1); AAA: text → #5895fe (7.15:1)

## Brands using this color

- **Bose** — secondary #005bff (Δ 0.919) — https://brandsweets.com/colors/brands/bose-com
- **Zoom** — primary #0b5cff (Δ 0.956) — https://brandsweets.com/colors/brands/zoom-us
- **Zoom** — secondary #0b5cff (Δ 0.956) — https://brandsweets.com/colors/brands/zoom-us
- **Nokia** — accent #005aff (Δ 0.977) — https://brandsweets.com/colors/brands/nokia-com
- **Spectrum** — accent #005eff (Δ 1.028) — https://brandsweets.com/colors/brands/spectrum-com
- **Toyota** — accent #145fff (Δ 1.358) — https://brandsweets.com/colors/brands/toyota-com
- **Dropbox** — secondary #0061fe (Δ 1.362) — https://brandsweets.com/colors/brands/dropbox-com
- **Cisco** — secondary #0a60ff (Δ 1.366) — https://brandsweets.com/colors/brands/cisco-com
- **Nivea** — secondary #0f60ff (Δ 1.421) — https://brandsweets.com/colors/brands/nivea-com
- **Dropbox** — primary #0061ff (Δ 1.457) — https://brandsweets.com/colors/brands/dropbox-com
- **IBM** — accent #0062fe (Δ 1.551) — https://brandsweets.com/colors/brands/ibm-com
- **Chase** — secondary #0060f0 (Δ 1.596) — https://brandsweets.com/colors/brands/chase-com
- **Grafana Labs** — primary #1b55f5 (Δ 1.599) — https://brandsweets.com/colors/brands/grafana-com
- **Grafana Labs** — accent #1b55f5 (Δ 1.599) — https://brandsweets.com/colors/brands/grafana-com
- **Framer** — primary #0055ff (Δ 1.666) — https://brandsweets.com/colors/brands/framer
- **IBM** — secondary #0f62fe (Δ 1.684) — https://brandsweets.com/colors/brands/ibm-com
- **Headspace** — secondary #0061ef (Δ 1.847) — https://brandsweets.com/colors/brands/headspace-com
- **OnePlus** — accent #2660f5 (Δ 1.907) — https://brandsweets.com/colors/brands/oneplus-com

## 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/015cf9-9ca6c4-df644e-201f2d-e9f0f1?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: "#015cf9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.