#1517B3 Hex Color
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#1517b3 is a deep, highly saturated blue with a cool, slightly violet undertone. Its dark value creates a serious, controlled look for finance, technology, government, and security branding. Use it as a dominant UI or background color with white text, which reaches about 11.6:1 contrast. The hex code is #1517b3.
Questions about #1517b3
What is #1517b3 in RGB, HSL and CMYK?
In RGB, #1517b3 is rgb(21, 23, 179), in HSL hsl(239, 79%, 39%) and in CMYK 88%, 87%, 0%, 30%.
What colors pair well with #1517b3?
Warm yellow accents create clear complementary energy beside #1517b3, while soft neutrals keep the palette controlled; pale blue tints can extend it into a quieter monochromatic scheme for interfaces that need hierarchy without losing the color’s identity.
Does #1517b3 read as warm or cool?
#1517b3 reads as a cool blue because its hue leans slightly toward violet and its strong saturation reinforces that crisp, distant feel. The dark value adds authority, making it suitable for focused, serious interfaces rather than relaxed or earthy designs.
Is #1517b3 readable on white or black?
#1517b3 has a 11.63:1 contrast ratio on white and 1.80:1 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.