#2133D1 Hex Color
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The hex code #2133d1 is a saturated, deep blue with a slight violet cast. Its dark value creates a serious, controlled mood suited to technology, finance, security, and government interfaces. Use it as a dominant background with white text, which reaches about 8.5:1 contrast. This vivid blue can overwhelm softer palettes, so pair it with muted gray or burgundy.
Questions about #2133d1
What is #2133d1 in RGB, HSL and CMYK?
In RGB, #2133d1 is rgb(33, 51, 209), in HSL hsl(234, 73%, 47%) and in CMYK 84%, 76%, 0%, 18%.
What colors pair well with #2133d1?
Muted gray and burgundy pair well with #2133d1 because they soften its saturated violet-blue intensity, balance its cool mood, and keep supporting elements from competing for attention in a focused palette. Use white for high-contrast text.
Why does #2133d1 read as a cool color?
#2133d1 reads as a cool color because its strong blue base and slight violet cast create a crisp, controlled impression rather than the visual warmth associated with red, orange, or yellow. Its deep value adds seriousness to interfaces and branding.
Is #2133d1 readable on white or black?
#2133d1 has a 8.54:1 contrast ratio on white and 2.45:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.