#143D51 Hex Color
Online color picker to view shades, tints, color codes, and complementary colors

#143d51 is a dark, muted blue with cool gray and slight green undertones. Its low lightness and subdued chroma create a serious, secure feel for finance, technology, and government interfaces. Use it as a dominant background in dark UI designs, where white text provides about 11.6:1 contrast. The hex code for this shade is #143d51.
Questions about #143d51
What is #143d51 in RGB, HSL and CMYK?
In RGB, #143d51 is rgb(20, 61, 81), in HSL hsl(200, 60%, 20%) and in CMYK 75%, 25%, 0%, 68%.
What colors pair well with #143d51?
#143d51 pairs well with white, cool light gray, muted teal, and warm tan accents, creating readable contrast while softening its dark, cool base; pale neutrals keep interfaces clean, while restrained terracotta adds warmth without overwhelming the shade.
What mood does #143d51 create in design?
#143d51 reads as a cool, serious blue because its low lightness and muted chroma reduce energy, making it suitable for navigation, dashboards, finance, technology, and government interfaces where a calm, dependable tone matters.
Is #143d51 readable on white or black?
#143d51 has a 11.56:1 contrast ratio on white and 1.81:1 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.