Complementary
Maximum contrast — logos, CTAs, bold pairs
← Back to IndigosOpen in Generator → Advanced contrast checker → Simulate in checker →
Indigos
Illicit Darkness
Psychology
This enigmatic shade can evoke a sense of intrigue, secrecy, and the allure of the forbidden or unknown.
History & Origin
Its name suggests the clandestine, a color that conceals and operates outside conventional light, much like shadows in historical narratives.
Combinations
Harmonious pairings from this color. Click any swatch to copy.
Values & Conversions
Copy any format — sRGB, print, and perceptual OKLCH.
CSS
Accessibility
WCAG 2.2 contrast for the pairings designers use most.
Recommended
Readable body text at this size.
20.04:1AAA
Use white text for body copy, labels, and controls.
✓ Small text✓ Large text
All pairings
Aa
White on color
20.04:1AAA
Aa
Black on color
1.05:1Fail
Aa
Color on white
20.04:1AAA
Aa
Color on black
1.05:1Fail
Variations
Shades, tints, and tones in 10% steps — built for real UI states.
Darker steps for hover, shadow, and pressed states.
Design token scale
50–950 ramp for systems workColor vision
How this color reads under common forms of color vision deficiency.
Similar colors
Perceptually closest named colors in the library.