#1B2522
Approximate Color Name: Midnight Obsidian
Closest CSS Color Name: Black (#000000)
Color Space Coordinates
Copyable codes for development, CSS styling, and print
WCAG 2.1 Contrast & Accessibility Audit
Evaluates readability standards for normal body text (4.5:1 AA / 7.0:1 AAA) and large headings (3.0:1 AA / 4.5:1 AAA)
Tonal Variations (Shades, Tints & Tones)
Calibrated step variations created by adding black (shades), white (tints), and gray (tones)
Harmonies for #1B2522 (Midnight Obsidian)
Classical color wheel pairings calculated from 360-degree rotational angles
Practical UI/UX Design Usage for #1B2522
Primary Buttons & Focus Rings
With an RGB luminance of 27, 37, 34, this shade works excellently with white text (#FFFFFF) for call-to-action buttons and form focus states.
Background Containers
To use #1B2522 as a card background or subtle surface tint, apply an opacity of 5% to 15% (bg-[#1B2522]/10 in Tailwind) to maintain high typography readability.
Data Visualization & Badges
Pair with its complementary accent #261C1F or triadic partner #231C26 to distinguish distinct categories in charts and tables.
Explore More Popular Colors
View All Colors Directory →Tools & Utilities for #1B2522
Explore gradients, test contrast ratios, and generate monochromatic shades with #1B2522
Related Educational Guides
Learn how color models, web contrast standards, and conversion mathematics work
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A deep technical comparison between HEX and RGB/RGBA color models in web development, CSS stylesheets, design systems, and rendering engines.
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Learn why digital colors look different when printed. Explore the physics of additive RGB light versus subtractive CMYK ink and how to avoid gamut clipping.