Dark Color

#372B2B

Approximate Color Name: Charcoal

Closest CSS Color Name: DarkSlateGray (#2F4F4F)

Color Space Coordinates

Copyable codes for development, CSS styling, and print

HEX#372B2B
RGBrgb(55, 43, 43)
HSLhsl(0, 12%, 19%)
HSV / HSBhsv(0, 21.8%, 21.6%)
CMYK (Print)cmyk(0%, 22%, 22%, 78%)
OKLCH (CSS4)oklch(0.303 0.018 19.4)
OKLaboklab(0.303 0.017 0.006)
Tailwind CSSbg-[#372B2B]

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)

Against Pure White (#FFFFFF)13.61:1
White Text on #372B2B
AA Normal Text
AAA Normal Text
Against Pure Black (#000000)1.54:1
Black Text on #372B2B
AA Normal Text
AAA Normal Text

Tonal Variations (Shades, Tints & Tones)

Calibrated step variations created by adding black (shades), white (tints), and gray (tones)

Harmonies for #372B2B (Charcoal)

Classical color wheel pairings calculated from 360-degree rotational angles

Complementary (180°)

Opposite

Triadic (120° / 240°)

Equidistant

Analogous (±30°)

Adjacent

Split-Complementary (150° / 210°)

Soft Contrast

Practical UI/UX Design Usage for #372B2B

Primary Buttons & Focus Rings

With an RGB luminance of 55, 43, 43, this shade works excellently with white text (#FFFFFF) for call-to-action buttons and form focus states.

Background Containers

To use #372B2B as a card background or subtle surface tint, apply an opacity of 5% to 15% (bg-[#372B2B]/10 in Tailwind) to maintain high typography readability.

Data Visualization & Badges

Pair with its complementary accent #2B3636 or triadic partner #2B362B to distinguish distinct categories in charts and tables.

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Tools & Utilities for #372B2B

Explore gradients, test contrast ratios, and generate monochromatic shades with #372B2B

All Tools →

Related Educational Guides

Learn how color models, web contrast standards, and conversion mathematics work

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