#0A1B2B Hex Color
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The hex code #0a1b2b is a very dark, muted blue with a cool, ashy undertone and low lightness. Its gloomy depth suggests seriousness, security, and control, making it effective for finance, technology, government, and nautical designs. Use it as a dominant dark background with white text, which reaches about 17.4:1 contrast and supports readable body copy.
Questions about #0a1b2b
What is #0a1b2b in RGB, HSL and CMYK?
In RGB, #0a1b2b is rgb(10, 27, 43), in HSL hsl(209, 62%, 10%) and in CMYK 77%, 37%, 0%, 83%. Browse more shades of black with names and hex codes.
Which colors pair well with #0a1b2b?
#0a1b2b pairs well with muted copper and pale gray because warm accents relieve its low-lightness base without making the palette loud. Use copper for small highlights and pale gray for larger text or secondary surfaces.
Where does #0a1b2b work best in a design system?
Use #0a1b2b as a dominant background or header color when a product needs a serious, controlled tone. Its very low lightness can make fine dark details disappear, so reserve it for large fields, strong type, and clear contrast.
Is #0a1b2b readable on white or black?
#0a1b2b has a 17.43:1 contrast ratio on white and 1.20:1 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.