# #539d8f

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

## Values

- Hex: `#539d8f`
- RGB: rgb(83, 157, 143)
- HSL: hsl(169, 31%, 47%)
- OKLCH: oklch(0.644 0.078 180)
- Relative luminance: 0.2794
- Nearest named color: Emerald Oasis (#67a195, Δ 2.562) — https://brandsweets.com/colors/emerald-oasis
- Moods: muted
- Page: https://brandsweets.com/colors/539d8f

## Tints & shades

- Tints (toward white): #5fab9d, #6fb3a7, #80bcb1, #91c5bb, #a5cfc8, #b6d8d2, #c6e1dc, #d7eae6, #e8f3f1, #f8fbfb
- Shades (toward black): #4c9083, #437f74, #3c7268, #35645c, #2e574f, #254640, #1e3934, #172b28, #0e1b18, #070d0c

## Harmonies

- Complementary: #9d5360
- Analogous: #539d6a, #53859d
- Triadic: #8f539d, #9d8f53
- Split-complementary: #9d5385, #9d6a53
- Tetradic: #6a539d, #9d5360, #859d53

## Colors that go with #539d8f

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 #539d8f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), N26 (https://brandsweets.com/colors/brands/n26-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #539d8f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Wellness (https://brandsweets.com/palettes/warm#wellness), Atelier (https://brandsweets.com/palettes/elegant#atelier), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Rain Garden and Estate put Blush Pink beside #539d8f, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Estate (https://brandsweets.com/palettes/luxury#estate), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink
- **Crimson** #dc143c [pool] — Crimson is paired with #539d8f in 7 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #539d8f in 5 real palettes, including Undergrowth and Clay & Linen, as the supporting colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #539d8f: 9 real palettes, including Peacock and Dusk, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 10 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #539d8f, as that palette's text colour. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Ford (https://brandsweets.com/colors/brands/ford-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 5 real palettes, including Mint Modern and Graphite put Orange beside #539d8f, as the accent. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Graphite (https://brandsweets.com/palettes/technical#graphite), Olympics (https://brandsweets.com/colors/brands/olympics-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/orange

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

- On white (#ffffff): 3.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #437f74 (4.64:1); AA: background → #292929 (4.56:1); AAA: text → #336158 (7.02:1)
- On black (#000000): 6.59:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #56a495 (7.14:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/539d8f-a2bebc-d459ab-1f2a2d-e9f1ec?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: "#539d8f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.