Dark Color

#282C38

Approximate Color Name: Charcoal

Closest CSS Color Name: DarkSlateGray (#2F4F4F)

Color Space Coordinates

Copyable codes for development, CSS styling, and print

HEX#282C38
RGBrgb(40, 44, 56)
HSLhsl(225, 17%, 19%)
HSV / HSBhsv(225, 28.6%, 22%)
CMYK (Print)cmyk(29%, 21%, 0%, 78%)
OKLCH (CSS4)oklch(0.294 0.023 270)
OKLaboklab(0.294 0 -0.023)
Tailwind CSSbg-[#282C38]

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)13.93:1
White Text on #282C38
AA Normal Text
AAA Normal Text
Against Pure Black (#000000)1.51:1
Black Text on #282C38
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 #282C38 (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 #282C38

Primary Buttons & Focus Rings

With an RGB luminance of 40, 44, 56, this shade works excellently with white text (#FFFFFF) for call-to-action buttons and form focus states.

Background Containers

To use #282C38 as a card background or subtle surface tint, apply an opacity of 5% to 15% (bg-[#282C38]/10 in Tailwind) to maintain high typography readability.

Data Visualization & Badges

Pair with its complementary accent #393528 or triadic partner #39282C to distinguish distinct categories in charts and tables.

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Tools & Utilities for #282C38

Explore gradients, test contrast ratios, and generate monochromatic shades with #282C38

All Tools →

Related Educational Guides

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

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