Color
#e5f31b
#e5f31brgb(229, 243, 27)hsl(64, 90%, 53%)oklch(0.923 0.203 114)Colors that go with #e5f31b
Blue, Charcoal and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Blue #0000ff
shipped4 real palettes, including Robinhood's brand system and Snapchat's brand system put Blue beside #e5f31b, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #e5f31b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Crimson #dc143c
shippedCrimson is paired with #e5f31b in 8 real palettes, including Ferrari's brand system and Lay's's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #e5f31b: 4 real palettes, including Ikea's brand system and FIFA's brand system, as the accent.
Red #ff0000
shippedRed is paired with #e5f31b in 4 real palettes, including Heineken's brand system and Paddle's brand system, as the accent.
Taupe #483c32
shippedTaupe is paired with #e5f31b in 7 real palettes, including Calvin Klein's brand system and Tommy Hilfiger's brand system, as the lead colour.
Tomato #ff6347
shipped4 real palettes, including Crayon Box and Night Market put Tomato beside #e5f31b, as the lead colour.
Violet #ee82ee
split-complementshippedViolet is a split-complement of #e5f31b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #e5f31b
Tints & shades
Harmonies
Contrast
| #e5f31b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.22:1 | fail | fail | fail | |
Aaon black | 17.17:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e5f31b as the background.
Brands using this color
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #e5f31b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/e5f31b-b9bea2-4e8adf-262d1f-f1eee9?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md