# #255bef

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

## Values

- Hex: `#255bef`
- RGB: rgb(37, 91, 239)
- HSL: hsl(224, 86%, 54%)
- OKLCH: oklch(0.535 0.229 264.4)
- Relative luminance: 0.1411
- Nearest named color: Blue Ribbon (#0066ff, Δ 3.421) — https://brandsweets.com/colors/blue-ribbon
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/255bef

## Tints & shades

- Tints (toward white): #3869f0, #507bf2, #6289f3, #7a9bf5, #8da9f6, #a0b8f8, #b8c9fa, #cbd8fb, #e3eafd, #f6f8fe
- Shades (toward black): #114be8, #1043d1, #0e3cb9, #0c34a1, #0a2c8a, #092572, #071d5a, #051542, #030e2b, #010613

## Harmonies

- Complementary: #efb925
- Analogous: #25c0ef, #5425ef
- Triadic: #ef255b, #5bef25
- Split-complementary: #ef5425, #c0ef25
- Tetradic: #ef25c0, #efb925, #25ef54

## Colors that go with #255bef

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 #255bef: 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), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #255bef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #255bef in 7 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] — 10 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #255bef, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Signal (https://brandsweets.com/colors/brands/signal-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #255bef: 12 real palettes, including Nokia's brand system and NHL's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #255bef: 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), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #255bef: 7 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #255bef: 9 real palettes, including OnePlus's brand system and HashiCorp's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.5:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1046da (7.22:1)
- On black (#000000): 3.82:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3d6cf0 (4.6:1); AA: background → #ebebeb (4.61:1); AAA: text → #7194f4 (7.24:1)

## Brands using this color

- **OnePlus** — accent #2660f5 (Δ 1.478) — https://brandsweets.com/colors/brands/oneplus-com
- **Chase** — secondary #0060f0 (Δ 1.508) — https://brandsweets.com/colors/brands/chase-com
- **Headspace** — secondary #0061ef (Δ 1.63) — https://brandsweets.com/colors/brands/headspace-com
- **Grafana Labs** — primary #1b55f5 (Δ 1.745) — https://brandsweets.com/colors/brands/grafana-com
- **Grafana Labs** — accent #1b55f5 (Δ 1.745) — https://brandsweets.com/colors/brands/grafana-com

## Curated palettes containing it

- **Console Light** (technical, clean, light) — #2563eb, #52525b, #16a34a, #fafafa, #18181b — A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else. — tool: https://brandsweets.com/palettes/new/2563eb-52525b-16a34a-fafafa-18181b — collection: https://brandsweets.com/palettes/technical
- **Slate Workspace** (minimal, cool, clean, modern) — #0f172a, #64748b, #2563eb, #f8fafc — Slate on slate with a single blue — the productivity-app look where the interface disappears behind the work. — tool: https://brandsweets.com/palettes/new/0f172a-64748b-2563eb-f8fafc — collection: https://brandsweets.com/palettes/minimal
- **Telehealth** (modern, cool, friendly) — #2563eb, #93c5fd, #16a34a, #ffffff, #14213d — Friendly blue with a soft tint and a green all-clear — approachable care with a tech backbone. — tool: https://brandsweets.com/palettes/new/2563eb-93c5fd-16a34a-ffffff-14213d — collection: https://brandsweets.com/palettes/modern

## 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/255bef-9ca2c4-df724e-221f2d-e9eff1?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: "#255bef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.