#663E40 color
The hex color #663E40 is a dark, grayish red.
In the RGB color model it is made of 40% red, 24.3% green and 25.1% blue (102, 62, 64).
Its hue angle is 357°, with 24% saturation and 32% lightness. For print, the CMYK equivalent is 0% cyan, 39% magenta, 37% yellow and 60% black.
The closest named color is Red Rumour (#693F43), a difference of 1.2 ΔE, which is barely visible.
White text is the more readable choice on this background (contrast 9.02:1).
#663E40 color codes
| HEX | #663E40 | |
|---|---|---|
| RGB | rgb(102, 62, 64) | |
| RGB percent | rgb(40%, 24.3%, 25.1%) | |
| HSL | hsl(357, 24%, 32%) | |
| HSV / HSB | hsv(357, 39%, 40%) | |
| CMYK | cmyk(0%, 39%, 37%, 60%) | |
| CIE LAB | lab(30.97, 17.81, 6.16) | |
| CIE LCH | lch(30.97, 18.84, 19.08) | |
| CIE XYZ | xyz(8.128, 6.641, 5.703) | |
| Decimal | 6700608 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #663E40, 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 #663E40 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 2.33:1 | Fail | Fail | Fail |
| Sample text | 9.02:1 | Pass | Pass | Pass |
| #663E40 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 9.02:1 | Pass | Pass | Pass |
| Sample text | 2.33:1 | Fail | Fail | Fail |
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 #663E40 looks to people with the most common types of color vision deficiency.
#464440Protanopia
no red cones#4f4c3fDeuteranopia
no green cones#6d3a3fTritanopia
no blue cones#494949Achromatopsia
no color vision
CSS examples
.background { background-color: #663e40; }
.text { color: #663e40; }
.border { border: 2px solid #663e40; }
.transparent { background-color: rgb(102 62 64 / 50%); }
.gradient { background: linear-gradient(to right, #663e40, #66503e); }
Similar colors
#693f43Red Rumour#654243Wild Thing#683939Hot Chocolate#644348Plum Intended#70403dWine Cellar#603231Rampant Rhubarb#69444fWine Stain#713e39Single Origin
Closest common color name: Wine.
Questions
- What color is #663E40?
- #663E40 is a dark, grayish red, closest to the named color Red Rumour. It belongs to the red family of colors.
- What is the RGB value of #663E40?
- The RGB value is 102, 62, 64: 102 red, 62 green and 64 blue on a 0 to 255 scale.
- What is the complementary color of #663E40?
- The complementary color is #3E6664, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #663E40?
- White text. Black text has a contrast ratio of 2.33:1 and white text 9.02:1. WCAG asks for at least 4.5:1 for normal text.