#00438C Hex Color
Deep blue with quiet authority
#00438c is a dark, cool blue with strong saturation and an authoritative character. The #00438c hex code suits corporate branding, finance, security interfaces, and nautical designs as a dominant background or header color. White text remains highly readable at about a 9.6:1 contrast ratio, supporting accessible UI and formal layouts.
Questions about #00438c
What is #00438c in RGB, HSL and CMYK?
In RGB, #00438c is rgb(0, 67, 140), in HSL hsl(211, 100%, 27%) and in CMYK 100%, 52%, 0%, 45%.
What colors pair well with #00438c?
#00438c pairs well with white, pale blue, cool gray, and warm accents such as gold or coral. White creates crisp contrast, while lighter blue and gray soften its authority; gold or coral adds energy without competing with its deep blue base.
Is #00438c readable on white or black?
#00438c has a 9.62:1 contrast ratio on white and 2.18:1 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.