#646B54 color
The hex color #646B54 is a dark, grayish yellow-green.
In the RGB color model it is made of 39.2% red, 42% green and 32.9% blue (100, 107, 84).
Its hue angle is 78°, with 12% saturation and 37% lightness. For print, the CMYK equivalent is 7% cyan, 0% magenta, 21% yellow and 58% black.
The closest named color is Hinterland (#616C51), a difference of 2.2 ΔE, a small difference.
White text is the more readable choice on this background (contrast 5.57:1).
#646B54 color codes
| HEX | #646B54 | |
|---|---|---|
| RGB | rgb(100, 107, 84) | |
| RGB percent | rgb(39.2%, 42%, 32.9%) | |
| HSL | hsl(78, 12%, 37%) | |
| HSV / HSB | hsv(78, 21%, 42%) | |
| CMYK | cmyk(7%, 0%, 21%, 58%) | |
| CIE LAB | lab(44.04, -7.17, 12.02) | |
| CIE LCH | lch(44.04, 14, 120.8) | |
| CIE XYZ | xyz(12.113, 13.865, 10.424) | |
| Decimal | 6581076 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #646B54, based on their position on the color wheel.
Complementary
The color opposite on the color wheel (180°). Strongest contrast.
Analogous
Neighbors 30° either side. Calm, natural combinations.
Split complementary
The two colors next to the complement (150° and 210°).
Triadic
Three colors evenly spaced, 120° apart.
Tetradic (square)
Four colors 90° apart.
Shades, tints and tones
Shades (darker, mixed with black)
Tints (lighter, mixed with white)
Tones (mixed with gray)
Contrast and accessibility
| Text on #646B54 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 3.77:1 | Fail | Fail | Pass |
| Sample text | 5.57:1 | Pass | Fail | Pass |
| #646B54 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 5.57:1 | Pass | Fail | Pass |
| Sample text | 3.77:1 | Fail | Fail | Pass |
WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.
Color blindness simulation
How #646B54 looks to people with the most common types of color vision deficiency.
#6e6853Protanopia
no red cones#6d6855Deuteranopia
no green cones#666965Tritanopia
no blue cones#686868Achromatopsia
no color vision
CSS examples
.background { background-color: #646b54; }
.text { color: #646b54; }
.border { border: 2px solid #646b54; }
.transparent { background-color: rgb(100 107 84 / 50%); }
.gradient { background: linear-gradient(to right, #646b54, #596b54); }
Similar colors
#616c51Hinterland#5f6957Italian Basil#5f674bMonstera#6b6d4eHerbal Whispers#5e6354Black Forest#666a47Bancha#5b6f55Cactus#595d45Tree of Life
Closest common color name: Ebony.
Questions
- What color is #646B54?
- #646B54 is a dark, grayish yellow-green, closest to the named color Hinterland. It belongs to the green family of colors.
- What is the RGB value of #646B54?
- The RGB value is 100, 107, 84: 100 red, 107 green and 84 blue on a 0 to 255 scale.
- What is the complementary color of #646B54?
- The complementary color is #5B546B, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #646B54?
- White text. Black text has a contrast ratio of 3.77:1 and white text 5.57:1. WCAG asks for at least 4.5:1 for normal text.