#647978 color
The hex color #647978 is a grayish cyan.
In the RGB color model it is made of 39.2% red, 47.5% green and 47.1% blue (100, 121, 120).
Its hue angle is 177°, with 10% saturation and 43% lightness. For print, the CMYK equivalent is 17% cyan, 0% magenta, 1% yellow and 53% black.
The closest named color is North Atlantic (#5E7B7F), a difference of 3.1 ΔE, a small difference.
White text is the more readable choice on this background (contrast 4.62:1).
#647978 color codes
| HEX | #647978 | |
|---|---|---|
| RGB | rgb(100, 121, 120) | |
| RGB percent | rgb(39.2%, 47.5%, 47.1%) | |
| HSL | hsl(177, 10%, 43%) | |
| HSV / HSB | hsv(177, 17%, 47%) | |
| CMYK | cmyk(17%, 0%, 1%, 53%) | |
| CIE LAB | lab(49.18, -7.88, -2.02) | |
| CIE LCH | lch(49.18, 8.13, 194.36) | |
| CIE XYZ | xyz(15.482, 17.74, 20.374) | |
| Decimal | 6584696 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #647978, 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 #647978 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 4.55:1 | Pass | Fail | Pass |
| Sample text | 4.62:1 | Pass | Fail | Pass |
| #647978 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 4.62:1 | Pass | Fail | Pass |
| Sample text | 4.55:1 | Pass | 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 #647978 looks to people with the most common types of color vision deficiency.
#767778Protanopia
no red cones#727478Deuteranopia
no green cones#5e7a79Tritanopia
no blue cones#757575Achromatopsia
no color vision
CSS examples
.background { background-color: #647978; }
.text { color: #647978; }
.border { border: 2px solid #647978; }
.transparent { background-color: rgb(100 121 120 / 50%); }
.gradient { background: linear-gradient(to right, #647978, #647079); }
Similar colors
#5e7b7fNorth Atlantic#6b7f81Blue Blood#657f7aUnderwater World#657d82Catfish#5e7e7dStream Burble#6e8082Stormy Sea#66787eNight Rendezvous#67786eCamping Trip
Closest common color name: Smoke.
Questions
- What color is #647978?
- #647978 is a grayish cyan, closest to the named color North Atlantic. It belongs to the gray family of colors.
- What is the RGB value of #647978?
- The RGB value is 100, 121, 120: 100 red, 121 green and 120 blue on a 0 to 255 scale.
- What is the complementary color of #647978?
- The complementary color is #796465, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #647978?
- White text. Black text has a contrast ratio of 4.55:1 and white text 4.62:1. WCAG asks for at least 4.5:1 for normal text.