Dark Slate Gray

HEX: #2F4F4F | Modern Palette

On White
8.93:1
PASS
On Black
2.35:1
FAIL

Color Specifications

HEX
#2F4F4F
RGB
47, 79, 79
HSL
180°, 40% ,30%
CMYK
40.51, 0, 0, 69.02

About Dark Slate Gray

Dark Slate Gray (#2F4F4F) is a color with RGB(47, 79, 79) and HSL(180°, 40.51%, 30.98%). It is commonly associated with Calm, Luxury moods. In design, it fits Cool styles and is suitable for Text, Logo, Print. Its complementary color is #4F2F2F, which creates strong contrast. Its triadic palette includes #4F2F4F and #4F4F2F. The name comes from Dark Slate Gray (English).

  • HEX: #2F4F4F
  • RGB: 47, 79, 79
  • HSL: 180°, 40.51%, 30.98%
  • Mood: Calm, Luxury
  • Style: Cool
  • Use case: Text, Logo, Print
  • Complementary color: #4F2F2F
  • Triadic colors: #4F2F4F, #4F4F2F
  • The name comes from Dark Slate Gray (English).

Live Components

LIGHT
DARK
System Notification Box

Color Palettes

Monochromatic Five tones of the same hue — a reliable scale for backgrounds, surfaces, and text.
Neutral + Accent Four near-neutral tones grounded by a saturated accent — clean and versatile for UI.
Analogous Five hues drifting across a 60° arc — naturally harmonious and pleasing to the eye.
3 + 1 + 1 Three analogous base colors, one complementary accent, one dark anchor — bold yet balanced.

Color Harmonies

Complementary

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

Analogous

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

Triadic

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

Split-Complementary

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

Tetradic (Square)

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

Monochromatic

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

Shades & Tints

A seamless scale of #2F4F4F from deepest shade to lightest tint.

Color Characteristics

Mood
Calm Luxury
Style
Cool
Use case
Text Logo Print

Accessibility Simulation

Deuteranopia #474750
Protanopia #4C4C4F
Tritanopia #2F4F4F
Achromatopsia #4A4A4A

Frequently Asked Questions

Dark Slate Gray (#2F4F4F) is a color with RGB(47, 79, 79) and HSL(180°, 40.51%, 30.98%).

#2F4F4F pairs strongly with #4F2F2F as its complementary color. It can also be used with neutral tones for balanced UI and design layouts.

#2F4F4F is suitable for Text, Logo, Print and works well with Cool styles.

#2F4F4F is commonly associated with Calm, Luxury.

The name Dark Slate Gray is linked to Dark Slate Gray from English, meaning A dark shade of gray with a hint of blue, reminiscent of wet slate rock..

Name, History & Etymology

Origin Word Dark Slate Gray
Meaning A dark shade of gray with a hint of blue, reminiscent of wet slate rock.
Language English
First Recorded Use Late 19th - Early 20th Century (as a named color in common use/standards)

History

The term 'slate' refers to a fine-grained, homogeneous metamorphic rock derived from an original shale-type sedimentary rock. Slate is known for its durability and its characteristic range of colors, which often include various shades of gray, blue-gray, and even purplish-gray. 'Slate gray' as a color descriptor has been used for centuries to describe the color of this rock. The addition of 'Dark' specifies a deeper, less luminous version of this color. Its inclusion in digital color palettes (like X11 and subsequently CSS) solidified its specific definition and widespread recognition.

First Recorded Use

While 'slate gray' has existed longer, the specific 'Dark Slate Gray' as a distinct named color, particularly with a standardized hex code, gained prominence with the advent of digital color systems and web standards. X11 color names, which influenced web colors, were established in the late 1980s and early 1990s.

Cultural Associations

This color often evokes feelings of sophistication, seriousness, and stability. It's commonly associated with natural elements like stone and stormy skies. In fashion and interior design, it's considered a versatile neutral that can be both modern and classic. Its slight blue undertone gives it more depth than a pure charcoal gray.

Similar Named Colors
Japanese Indigo #264348 ΔE 4.93
Midnight Green #004953 ΔE 6.39
Deep Jungle Green #004B49 ΔE 6.57
Warm Black #004242 ΔE 6.89

Code Snippets

/* Background */
.element {
    background-color: #2F4F4F;
}

/* Text */
.element {
    color: #2F4F4F;
}

/* Border */
.element {
    border: 1px solid #2F4F4F;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #2F4F4F,
        #6F2F2F
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #2F4F4F,
        #6F2F2F
    );
}

// SCSS variable
$dark-slate-gray: #2F4F4F;

// With RGB channels (useful for rgba() usage)
$dark-slate-gray-r: 47;
$dark-slate-gray-g: 79;
$dark-slate-gray-b: 79;

// Usage
.element {
    background-color: $dark-slate-gray;
    color: rgba($dark-slate-gray-r, $dark-slate-gray-g, $dark-slate-gray-b, 0.8);
}