Arsenic (#3B444B)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text
This is how text may look on this color.
Best text color: #FFFFFF
Contrast vs white: 9.93:1 — vs black: 2.11:1

Color values

  • HEX #3B444B
  • RGB rgb(59, 68, 75)
  • HSL hsl(206, 21%, 29%)
  • CMYK cmyk( 21.33, 9.33, 0, 70.59 )

Tags

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #3B444B based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Arsenic
#3B444B Base
#4B423B
Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Arsenic
#3B444B Base
#3B4B4A
#3B3C4B
Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Arsenic
#3B444B Base
#4B3B44
#444B3B
Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Arsenic
#3B444B Base
#4B3B3C
#4B4A3B
Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Arsenic
#3B444B Base
#4A3B4B
#4B423B
#3C4B3B
Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Arsenic
#3B444B Base
#0B0D0E
#191D20
#292F34
#4D5962
#5D6B76
#82919D
Shades & Tints

Darker shades and lighter tints of Arsenic, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

#0B0D0E
#15181A
#1E2327
#282E33
#31393F
Arsenic #3B444B Base
#5A6872
#7B8B97
#A2ADB6
#C9D0D5
#F1F2F4
CSS & SCSS Snippets

Ready-to-use code snippets for #3B444B. Click the copy button to copy any snippet to your clipboard.

CSS Properties
/* Background */
.element {
    background-color: #3B444B;
}

/* Text */
.element {
    color: #3B444B;
}

/* Border */
.element {
    border: 1px solid #3B444B;
}
CSS Gradient
/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #3B444B,
        #5B493B
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #3B444B,
        #5B493B
    );
}
SCSS Variable
// SCSS variable
$arsenic: #3B444B;

// With RGB channels (useful for rgba() usage)
$arsenic-r: 59;
$arsenic-g: 68;
$arsenic-b: 75;

// Usage
.element {
    background-color: $arsenic;
    color: rgba($arsenic-r, $arsenic-g, $arsenic-b, 0.8);
}
Color Blindness Simulation

How Arsenic appears to people with different types of color vision deficiency.

Normal Vision #3B444B How the color appears with full color vision.
Deuteranopia #42424B Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.
Protanopia #43434B Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.
Tritanopia #3A4545 Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.
Achromatopsia #434343 Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.
Similar Named Colors

The closest named colors to Arsenic ranked by perceptual difference (Delta-E 2000 — lower = more similar).

Arsenic #3B444B Base
Charcoal #36454F ΔE 2.41
Outer Space #414A4C ΔE 3.65
Onyx #353839 ΔE 5.39
Jet #343434 ΔE 7.24

How to use this color

  1. Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
  2. Use CMYK when preparing print assets (posters, packaging, brochures).
  3. Check contrast before using it for text or important UI elements.