What color is #646F85?

#646F85 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the blue family of colors.

What is the RGB value of #646F85?

The RGB value is 100, 111, 133: 100 red, 111 green and 133 blue on a 0 to 255 scale.

What is the complementary color of #646F85?

The complementary color is #857A64, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646F85?

White text. Black text has a contrast ratio of 4.15:1 and white text 5.05:1. WCAG asks for at least 4.5:1 for normal text.

#646F85 color

#646F85 rgb(100, 111, 133)

Shades of blue

The hex color #646F85 is a grayish blue.

In the RGB color model it is made of 39.2% red, 43.5% green and 52.2% blue (100, 111, 133).

Its hue angle is 220°, with 14% saturation and 46% lightness. For print, the CMYK equivalent is 25% cyan, 17% magenta, 0% yellow and 48% black.

The closest named color is Ashen Whisper (#646B7A), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.05:1).

#646F85 color codes

HEX	`#646F85`
RGB	`rgb(100, 111, 133)`
RGB percent	`rgb(39.2%, 43.5%, 52.2%)`
HSL	`hsl(220, 14%, 46%)`
HSV / HSB	`hsv(220, 25%, 52%)`
CMYK	`cmyk(25%, 17%, 0%, 48%)`
CIE LAB	`lab(46.67, 1.09, -13.47)`
CIE LCH	`lch(46.67, 13.52, 274.63)`
CIE XYZ	`xyz(15.172, 15.771, 24.431)`
Decimal	`6582149`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646F85, 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 #646F85	Ratio	AA	AAA	AA large
Sample text	4.15:1	Fail	Fail	Pass
Sample text	5.05:1	Pass	Fail	Pass

#646F85 as text on	Ratio	AA	AAA	AA large
Sample text	5.05:1	Pass	Fail	Pass
Sample text	4.15:1	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 #646F85 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646f85; }
.text { color: #646f85; }
.border { border: 2px solid #646f85; }
.transparent { background-color: rgb(100 111 133 / 50%); }
.gradient { background: linear-gradient(to right, #646f85, #6a6485); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #646F85?: #646F85 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the blue family of colors.
What is the RGB value of #646F85?: The RGB value is 100, 111, 133: 100 red, 111 green and 133 blue on a 0 to 255 scale.
What is the complementary color of #646F85?: The complementary color is #857A64, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646F85?: White text. Black text has a contrast ratio of 4.15:1 and white text 5.05:1. WCAG asks for at least 4.5:1 for normal text.