Deadly Mustard
#dead11
Darker olive-gold mustard for moody dashboards
About Deadly Mustard
On my screen, Deadly Mustard looks like a mustard stain you'd get from old signage: bold, but also a little dusty and heavy. Compared to Groovy Giraffe's sunnier, lighter pop, this one sits lower and more grounded, with less lift and more weight in the pigment.
It's the one you reach for when you need a green-family accent that feels "warning label" level serious, not friendly. I use it for dashboards and finance apps where status chips, alert counts, and caution callouts need to read fast without going neon, especially next to fresh greens and clean creams. It also works in CPG layouts for prominent promo markers and inventory or compliance flags, where Gold Tooth and Golden Frame can read either too metallic or too structured.
Quick quirk: because it leans warm and muted, it can start to look dirty if your neutrals are too cool. Pair with warmer off-whites or slightly greener highlights to keep it crisp.
Code snippets
Copy this color into your project.
Contrast checker
WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.
On White #ffffff
On Gray 100 #f5f5f5
On Gray 900 #18181b
On Black #000000
Variations
Shades
Darker variations, created by mixing toward black.
Tints
Lighter variations, created by mixing toward white.
Tones
Muted variations, created by reducing saturation.
Hues
Hue rotations around the color wheel.
Temperatures
Warm and cool shifts of this color.
Color harmonies
Suggested palettes
Palettes built around this color.
Community palettes
Published palettes that include this color.
