# #455f63

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

## Values

- Hex: `#455f63`
- RGB: rgb(69, 95, 99)
- HSL: hsl(188, 18%, 33%)
- OKLCH: oklch(0.466 0.032 207.9)
- Relative luminance: 0.1035
- Nearest named color: After the Storm (#33616a, Δ 2.114) — https://brandsweets.com/colors/after-the-storm
- Moods: cool, muted
- Page: https://brandsweets.com/colors/455f63

## Tints & shades

- Tints (toward white): #547378, #60858a, #72979d, #84a4a9, #99b4b8, #abc1c4, #c0d1d3, #d2dee0, #e7edee, #f9fbfb
- Shades (toward black): #3f575a, #384e51, #324548, #2c3d3f, #283739, #212e30, #1b2627, #151d1e, #0f1415, #080c0c

## Harmonies

- Complementary: #634945
- Analogous: #456358, #455063
- Triadic: #63455f, #5f6345
- Split-complementary: #634550, #635845
- Tetradic: #584563, #634945, #506345

## Colors that go with #455f63

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

- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #455f63 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
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #455f63: 4 real palettes, including Dusk and Alpine, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Alpine (https://brandsweets.com/palettes/cool#alpine), Open House (https://brandsweets.com/palettes/clean#open-house), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #455f63, as the surface under it. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #455f63: 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 #455f63 in 6 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), Redfin (https://brandsweets.com/colors/brands/redfin-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Dark Goldenrod** #b8860b [pool] — 4 real palettes, including Cider and Rolex's brand system put Dark Goldenrod beside #455f63, as the supporting colour. Seen in: Cider (https://brandsweets.com/palettes/warm#cider), Rolex (https://brandsweets.com/colors/brands/rolex-com), Puma (https://brandsweets.com/colors/brands/puma-com), Greige (https://brandsweets.com/palettes/neutral#greige). — https://brandsweets.com/colors/darkgoldenrod
- **Denim** #1560bd [pool] — Designers have shipped Denim with #455f63: 7 real palettes, including HP's brand system and The New York Times's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Campus (https://brandsweets.com/palettes/friendly#campus), Dutch Bros (https://brandsweets.com/colors/brands/dutchbros-com). — https://brandsweets.com/colors/denim
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #455f63: 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): 6.84:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #435c60 (7.15:1)
- On black (#000000): 3.07:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5a7c81 (4.63:1); AA: background → #d4d4d4 (4.61:1); AAA: text → #789ba1 (7:1)

## Curated palettes containing it

- **Desert Road** (earthy, warm, muted, elegant) — #c2703d, #c9b28b, #3e5f5c, #fbf6ee, #2b211a — Sandstone and sand with a deep teal — the one cool note makes the warm colours look intentional rather than beige. — tool: https://brandsweets.com/palettes/new/c2703d-c9b28b-3e5f5c-fbf6ee-2b211a — collection: https://brandsweets.com/palettes/earthy

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/455f63-a2b7be-df4e81-1f252d-e9f1ee?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: "#455f63" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.