# #45b577

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

## Values

- Hex: `#45b577`
- RGB: rgb(69, 181, 119)
- HSL: hsl(147, 45%, 49%)
- OKLCH: oklch(0.693 0.137 155.7)
- Relative luminance: 0.3564
- Nearest named color: mediumseagreen (#3cb371, Δ 1.138) — https://brandsweets.com/colors/mediumseagreen
- Moods: neutral
- Page: https://brandsweets.com/colors/45b577

## Tints & shades

- Tints (toward white): #55be84, #67c592, #7acd9f, #8cd4ac, #9fdbba, #aee0c4, #c0e7d2, #d3eedf, #e5f5ec, #f8fcfa
- Shades (toward black): #3fa66e, #389461, #328558, #2b734b, #266442, #1f5136, #19432c, #123020, #0d2116, #060f0a

## Harmonies

- Complementary: #b54583
- Analogous: #4ab545, #45b5b0
- Triadic: #7745b5, #b57745
- Split-complementary: #b045b5, #b5454a
- Tetradic: #454ab5, #b54583, #b5b045

## Colors that go with #45b577

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 #45b577: softer than #000 and cool enough to feel like part of the same palette. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), N26 (https://brandsweets.com/colors/brands/n26-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Unity's brand system and Spotify's brand system put Blue beside #45b577, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #45b577 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/cornflowerblue
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Fintech Trust and Telehealth put Midnight Blue beside #45b577, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 5 real palettes, including Meadow and Diner put Mustard Yellow beside #45b577, as the supporting colour. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow), Diner (https://brandsweets.com/palettes/vivid#diner), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #45b577 in 5 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #45b577 in 16 real palettes, including Chime's brand system and Undergrowth, as the lead colour. Seen in: Chime (https://brandsweets.com/colors/brands/chime-com), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Orchid** #da70d6 [harmony: complementary] — Orchid sits directly opposite #45b577 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/orchid

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

- On white (#ffffff): 2.58:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #328558 (4.53:1); AA: background → #383838 (4.54:1); AAA: text → #266442 (7.04:1); AAA: background → #141414 (7.13:1)
- On black (#000000): 8.13:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Unity** — accent #44bb81 (Δ 1.846) — https://brandsweets.com/colors/brands/unity-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/45b577-a2beb2-d059d4-1f2d2c-eaf1e9?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: "#45b577" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.