# #1ff431

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

## Values

- Hex: `#1ff431`
- RGB: rgb(31, 244, 49)
- HSL: hsl(125, 91%, 54%)
- OKLCH: oklch(0.841 0.272 143.3)
- Relative luminance: 0.6521
- Nearest named color: Becquerel (#4bec13, Δ 2.199) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/1ff431

## Tints & shades

- Tints (toward white): #32f543, #4bf759, #5ef76b, #77f981, #8af993, #9efaa5, #b6fcbc, #c9fcce, #e2fee4, #f5fff6
- Shades (toward black): #0bef1e, #0ad61b, #09be18, #08a615, #078d12, #06750f, #045d0c, #034409, #022c06, #011302

## Harmonies

- Complementary: #f41fe3
- Analogous: #78f41f, #1ff49b
- Triadic: #311ff4, #f4311f
- Split-complementary: #9b1ff4, #f41f78
- Tetradic: #1f78f4, #f41fe3, #f49b1f

## Colors that go with #1ff431

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

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #1ff431 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/violet
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #1ff431: 3 real palettes, including Remix's brand system and Learning App, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Learning App (https://brandsweets.com/palettes/playful#learning-app), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #1ff431: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #1ff431: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #1ff431: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [pool] — Red is paired with #1ff431 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Salmon** #fa8072 [harmony: triadic] — Salmon completes a triad with #1ff431 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/salmon
- **Cornflower Blue** #6495ed [harmony: triadic] — Cornflower Blue completes a triad with #1ff431 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 1.5:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #068811 (4.63:1); AA: background → #595959 (4.68:1); AAA: text → #05660d (7.21:1); AAA: background → #3d3d3d (7.26:1)
- On black (#000000): 14.04:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/1ff431-a2bea7-a54edf-1f2d26-ecf1e9?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: "#1ff431" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.