Obsidian
Obsidian Parameter Conversion Table
More converters →Obsidian Color Schemes
Obsidian WCAG Accessibility Contrast
WCAG Calculator →The contrast ratio of this color against common foreground/background colors (based on the WCAG 2.1 standard)
Obsidian Shade Variants
Gradient Generator →Obsidian Color Introduction
Definition
Obsidian (HEX #0B0B0B) has the RGB value rgb(11, 11, 11), the HSL value hsl(0°, 0%, 4%) and the CMYK print value cmyk(0%, 0%, 0%, 96%). In terms of color schemes, the complement of Obsidian is #0B0B0B, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #0B0B0B and #0B0B0B that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#0B0B0B, #0B0B0B) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Obsidian uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Obsidian has a contrast ratio of 19.68:1 against white and 1.07:1 against black; paired with a white background it reaches AAA, making body text highly readable.
Color Characteristics
Pairings of black and white carry no interference from any color tendency, letting the content itself take center stage — which is why they are regarded as classics in premium branding and minimalist design. Specifically, Obsidian has a lightness of 4% and a saturation of 0%, on a page it works well as a dark background or heading text color, creating a strong sense of visual weight; moreover, it contains almost no chromatic content, giving it a restrained, understated character that makes it ideal for creating a premium feel and a sense of space. In a word: Volcanic glass.
Color Psychology
Psychologically, black-and-white palettes represent the ultimate and an attitude; they strip away emotional noise and express sophistication and modernity in the purest way. For this reason Obsidian tends to leave a first impression of being pure and powerful in the viewer’s mind, and this emotional tone also defines the role it plays in design.
Best Uses
Black-and-white palettes are commonly used for large headlines, logos and generous negative-space layouts; a monochrome base with a single bright accent immediately creates a strong modern feel. In real projects, Obsidian is also often used as a dark background or heading text color; in “Black & White”-themed designs, the adjacent colors or lightness gradients built around it quickly establish a cohesive, clearly layered color scheme.
Obsidian Featured In
This color is included in the following color cards and color families. Click a card to browse more colors in the corresponding collection.