# #859efa

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

## Values

- Hex: `#859efa`
- RGB: rgb(133, 158, 250)
- HSL: hsl(227, 92%, 75%)
- OKLCH: oklch(0.719 0.137 271.1)
- Relative luminance: 0.3634
- Nearest named color: Fennel Flower (#77aaff, Δ 3.216) — https://brandsweets.com/colors/fennel-flower
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/859efa

## Tints & shades

- Tints (toward white): #8ea6fa, #9db1fb, #a7b9fb, #b1c1fc, #bfcdfc, #c9d4fd, #d3dcfd, #dde4fe, #ebeffe, #f5f7ff
- Shades (toward black): #6283f8, #4068f7, #1e4df6, #0a39e6, #0831c4, #07279d, #051f7a, #041658, #020d36, #010514

## Harmonies

- Complementary: #fae085
- Analogous: #85d9fa, #a685fa
- Triadic: #fa859e, #9efa85
- Split-complementary: #faa685, #d9fa85
- Tetradic: #fa85d9, #fae085, #85faa6

## Colors that go with #859efa

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 #859efa: softer than #000 and cool enough to feel like part of the same palette. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Mercury (https://brandsweets.com/colors/brands/mercury-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com). — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [harmony, pool: split] — Dark Orange is a split-complement of #859efa: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #859efa's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Remix (https://brandsweets.com/colors/brands/remix-run), Calm (https://brandsweets.com/colors/brands/calm-com), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com). — https://brandsweets.com/colors/deepskyblue
- **Goldenrod** #daa520 [harmony, pool: complementary] — Goldenrod sits directly opposite #859efa on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/goldenrod
- **Amber** #ffbf00 [pool] — Amber is paired with #859efa in 7 real palettes, including Ahrefs's brand system and NBA's brand system, as the supporting colour. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #859efa, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #859efa: 7 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent. Seen in: 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), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim
- **Emerald Green** #50c878 [harmony, pool: triadic] — Emerald Green completes a triad with #859efa — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Supabase (https://brandsweets.com/colors/brands/supabase), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/emerald-green

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

- On white (#ffffff): 2.54:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4068f7 (4.62:1); AA: background → #383838 (4.62:1); AAA: text → #0a3df5 (7:1); AAA: background → #171717 (7.06:1)
- On black (#000000): 8.27:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Roblox** — secondary #829efc (Δ 0.456) — https://brandsweets.com/colors/brands/roblox-com
- **Ahrefs** — accent #889afc (Δ 1.156) — https://brandsweets.com/colors/brands/ahrefs-com

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/859efa-9ca0c4-df7a4e-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: "#859efa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.