#210000 Hex Color
Online color picker to view shades, tints, color codes, and complementary colors
Near-black with a concentrated red undertone, #210000 feels severe, warm, and somber rather than bright or playful. The hex code #210000 suits moody interfaces, luxury packaging, wine branding, and formal designs as a dominant dark base. White text remains highly readable against it, while dusty rose or muted gold can add controlled contrast without weakening its intensity.
Questions about #210000
What is #210000 in RGB, HSL and CMYK?
In RGB, #210000 is rgb(33, 0, 0), in HSL hsl(0, 100%, 6%) and in CMYK 0%, 100%, 100%, 87%.
Does #210000 work with white text?
White text has very strong contrast against #210000, while black text has insufficient contrast because this near-black red leaves little luminance separation from black, making white a stronger choice for headings, body copy, and interface labels. Check other foreground colors before use.
What colors pair well with #210000?
Muted gold and dusty rose pair well with #210000, adding restrained contrast without competing with its concentrated red undertone; warm cream can soften the overall palette for packaging, editorial layouts, or formal interfaces.
Does #210000 read as warm or cool?
#210000 reads as a warm near-black because its red channel is present while green and blue are zero, giving the dark base a concentrated red cast rather than a neutral charcoal appearance. Use it when a dark design needs restrained warmth.
Is #210000 readable on white or black?
#210000 has a 19.72:1 contrast ratio on white and 1.06:1 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.