# #435e6b

A color — cool, muted. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#435e6b`
- RGB: rgb(67, 94, 107)
- HSL: hsl(200, 23%, 34%)
- OKLCH: oklch(0.466 0.038 229.3)
- Relative luminance: 0.1026
- Nearest named color: Atlantis (#336172, Δ 1.946) — https://brandsweets.com/colors/atlantis
- Moods: cool, muted
- Page: https://brandsweets.com/colors/435e6b

## Tints & shades

- Tints (toward white): #4f6e7d, #5c8193, #6c90a3, #82a1b0, #94afbc, #a7bdc8, #bdced6, #d0dce2, #e6ecef, #f9fafb
- Shades (toward black): #3d5561, #374d58, #31454e, #2b3c45, #25343c, #1f2c32, #1a2429, #141b1f, #0e1316, #080b0d

## Harmonies

- Complementary: #6b5043
- Analogous: #436b64, #43496b
- Triadic: #6b435d, #5d6b43
- Split-complementary: #6b4349, #6b6443
- Tetradic: #64436b, #6b5043, #496b43

## Colors that go with #435e6b

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #435e6b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Capital One (https://brandsweets.com/colors/brands/capitalone-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Discover (https://brandsweets.com/colors/brands/discover-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com). — https://brandsweets.com/colors/steelblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #435e6b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/sienna
- **Blue** #0000ff [pool] — 7 real palettes, including Warp's brand system and Rolex's brand system put Blue beside #435e6b, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Rolex (https://brandsweets.com/colors/brands/rolex-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #435e6b: 4 real palettes, including Dusk and Open House, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house), Alpine (https://brandsweets.com/palettes/cool#alpine), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #435e6b: 4 real palettes, including Desert Road and Dusk, as the lead colour. Seen in: Desert Road (https://brandsweets.com/palettes/warm#desert-road), Dusk (https://brandsweets.com/palettes/cool#dusk), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #435e6b in 9 real palettes, including Codecademy's brand system and Gemstone, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Dark Goldenrod** #b8860b [pool] — 4 real palettes, including Puma's brand system and Cider put Dark Goldenrod beside #435e6b, as the supporting colour. Seen in: Puma (https://brandsweets.com/colors/brands/puma-com), Cider (https://brandsweets.com/palettes/warm#cider), Rolex (https://brandsweets.com/colors/brands/rolex-com), Greige (https://brandsweets.com/palettes/neutral#greige). — https://brandsweets.com/colors/darkgoldenrod
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #435e6b: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 6.88:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #415b68 (7.19:1)
- On black (#000000): 3.05:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #587c8d (4.68:1); AA: background → #d1d1d1 (4.51:1); AAA: text → #789aab (7.01:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/435e6b-9cb2c4-df4e64-1f232d-e9f1f0?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: "#435e6b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.