#664F57 color
The hex color #664F57 is a dark, grayish rose.
In the RGB color model it is made of 40% red, 31% green and 34.1% blue (102, 79, 87).
Its hue angle is 339°, with 13% saturation and 35% lightness. For print, the CMYK equivalent is 0% cyan, 23% magenta, 15% yellow and 60% black.
The closest named color is Pinot Noir (#605258), a difference of 3.9 ΔE, a small difference.
White text is the more readable choice on this background (contrast 7.44:1).
#664F57 color codes
| HEX | #664F57 | |
|---|---|---|
| RGB | rgb(102, 79, 87) | |
| RGB percent | rgb(40%, 31%, 34.1%) | |
| HSL | hsl(339, 13%, 35%) | |
| HSV / HSB | hsv(339, 23%, 40%) | |
| CMYK | cmyk(0%, 23%, 15%, 60%) | |
| CIE LAB | lab(36.19, 11.07, -0.99) | |
| CIE LCH | lch(36.19, 11.11, 354.87) | |
| CIE XYZ | xyz(9.996, 9.105, 10.246) | |
| Decimal | 6704983 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #664F57, 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 #664F57 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 2.82:1 | Fail | Fail | Fail |
| Sample text | 7.44:1 | Pass | Pass | Pass |
| #664F57 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 7.44:1 | Pass | Pass | Pass |
| Sample text | 2.82:1 | 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 #664F57 looks to people with the most common types of color vision deficiency.
#515357Protanopia
no red cones#575756Deuteranopia
no green cones#6a4e52Tritanopia
no blue cones#555555Achromatopsia
no color vision
CSS examples
.background { background-color: #664f57; }
.text { color: #664f57; }
.border { border: 2px solid #664f57; }
.transparent { background-color: rgb(102 79 87 / 50%); }
.gradient { background: linear-gradient(to right, #664f57, #66534f); }
Similar colors
#605258Pinot Noir#624a49Dark Chocolate#644348Plum Intended#69444fWine Stain#625665Fedora#6f5166Hibernation#5e4a47Mustang#654a46Liver
Closest common color name: Eggplant.
Questions
- What color is #664F57?
- #664F57 is a dark, grayish rose, closest to the named color Pinot Noir. It belongs to the gray family of colors.
- What is the RGB value of #664F57?
- The RGB value is 102, 79, 87: 102 red, 79 green and 87 blue on a 0 to 255 scale.
- What is the complementary color of #664F57?
- The complementary color is #4F665E, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #664F57?
- White text. Black text has a contrast ratio of 2.82:1 and white text 7.44:1. WCAG asks for at least 4.5:1 for normal text.