# #2a7dcf

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

## Values

- Hex: `#2a7dcf`
- RGB: rgb(42, 125, 207)
- HSL: hsl(210, 66%, 49%)
- OKLCH: oklch(0.582 0.148 251.8)
- Relative luminance: 0.1966
- Nearest named color: Haddock’s Sweater (#277aba, Δ 3.277) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2a7dcf

## Tints & shades

- Tints (toward white): #3c8ad7, #5196db, #67a3e0, #7cb0e4, #91bde8, #a2c7ec, #b7d4f0, #cce0f5, #e1edf9, #f7fafd
- Shades (toward black): #2773be, #2366a9, #1f5c98, #1b4f83, #174572, #13385d, #102e4c, #0b2137, #081726, #030a11

## Harmonies

- Complementary: #cf7d2a
- Analogous: #2acfcf, #2a2acf
- Triadic: #cf2a7d, #7dcf2a
- Split-complementary: #cf2a2a, #cfcf2a
- Tetradic: #cf2acf, #cf7d2a, #2acf2a

## Colors that go with #2a7dcf

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 #2a7dcf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2a7dcf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #2a7dcf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #2a7dcf in 12 real palettes, including Wired's brand system and Walmart's brand system, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Readymag's brand system and Qualcomm's brand system put Blue beside #2a7dcf, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #2a7dcf: 11 real palettes, including Hershey's's brand system and General Mills's brand system, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2a7dcf: 9 real palettes, including Astro's brand system and Telegram's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/deepskyblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #2a7dcf: 6 real palettes, including Honda's brand system and AT&T's brand system, as the supporting colour. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), AT&T (https://brandsweets.com/colors/brands/att-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 4.26:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2978c7 (4.56:1); AA: background → #0f0f0f (4.5:1); AAA: text → #1e5994 (7.21:1)
- On black (#000000): 4.93:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #5a9cdd (7.23:1)

## Brands using this color

- **Astro** — primary #3178c6 (Δ 1.742) — https://brandsweets.com/colors/brands/astro-build
- **Substack** — secondary #0083d5 (Δ 1.895) — https://brandsweets.com/colors/brands/substack-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/2a7dcf-9cabc4-df514e-1f202d-e9f1f1?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: "#2a7dcf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.