Dark Color

#211E34

Approximate Color Name: Midnight Obsidian

Closest CSS Color Name: DarkSlateGray (#2F4F4F)

Color Space Coordinates

Copyable codes for development, CSS styling, and print

HEX#211E34
RGBrgb(33, 30, 52)
HSLhsl(248, 27%, 16%)
HSV / HSBhsv(248, 42.3%, 20.4%)
CMYK (Print)cmyk(37%, 42%, 0%, 80%)
OKLCH (CSS4)oklch(0.25 0.041 289.7)
OKLaboklab(0.25 0.014 -0.039)
Tailwind CSSbg-[#211E34]
Check WCAG ContrastGenerate Shades & TintsBuild Palette

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)16.15:1
White Text on #211E34
AA Normal Text
AAA Normal Text
Against Pure Black (#000000)1.30:1
Black Text on #211E34
AA Normal Text
AAA Normal Text

Tonal Variations (Shades, Tints & Tones)

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

Shades (Darker with Black)
#211E34
#1E1B2F
#1A182A
#171524
#14121F
#110F1A
#0D0C15
#0A0910
#07060A
#030305
#000000
Tints (Lighter with White)
#211E34
#373548
#4D4B5D
#646271
#7A7885
#908F9A
#A6A5AE
#BCBCC2
#D3D2D6
#E9E9EB
#FFFFFF
Tones (Muted with Gray)
#211E34
#2B283C
#343243
#3E3B4B
#474552
#514F5A
#5A5962
#646369
#6D6C71
#777678
#808080

Harmonies for #211E34 (Midnight Obsidian)

Classical color wheel pairings calculated from 360-degree rotational angles

Complementary (180°)

Opposite
#211E34#31341E

Triadic (120° / 240°)

Equidistant
#211E34#34211E#1E3421

Analogous (±30°)

Adjacent
#1E2634#211E34#2C1E34

Split-Complementary (150° / 210°)

Soft Contrast
#211E34#342C1E#26341E

Practical UI/UX Design Usage for #211E34

Primary Buttons & Focus Rings

With an RGB luminance of 33, 30, 52, this shade works excellently with white text (#FFFFFF) for call-to-action buttons and form focus states.

Background Containers

To use #211E34 as a card background or subtle surface tint, apply an opacity of 5% to 15% (bg-[#211E34]/10 in Tailwind) to maintain high typography readability.

Data Visualization & Badges

Pair with its complementary accent #31341E or triadic partner #34211E to distinguish distinct categories in charts and tables.

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Tools & Utilities for #211E34

Explore gradients, test contrast ratios, and generate monochromatic shades with #211E34

All Tools →

Contrast Checker

Verify WCAG 2.1 AA/AAA compliance on #211E34 surfaces.

Shades & Tints Scale

Generate 10-step tints and dark shade ramp tokens.

Gradient Generator

Build CSS linear and radial gradients starting with #211E34.

Palette Generator

Lock #211E34 and generate complementary 5-color palettes.

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