What color is #646978?

#646978 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the gray family of colors.

What is the RGB value of #646978?

The RGB value is 100, 105, 120: 100 red, 105 green and 120 blue on a 0 to 255 scale.

What is the complementary color of #646978?

The complementary color is #787364, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646978?

White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.

#646978 color

#646978 rgb(100, 105, 120)

Shades of gray

The hex color #646978 is a grayish blue.

In the RGB color model it is made of 39.2% red, 41.2% green and 47.1% blue (100, 105, 120).

Its hue angle is 225°, with 9% saturation and 43% lightness. For print, the CMYK equivalent is 17% cyan, 13% magenta, 0% yellow and 53% black.

The closest named color is Ashen Whisper (#646B7A), a difference of 1.2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.48:1).

#646978 color codes

HEX	`#646978`
RGB	`rgb(100, 105, 120)`
RGB percent	`rgb(39.2%, 41.2%, 47.1%)`
HSL	`hsl(225, 9%, 43%)`
HSV / HSB	`hsv(225, 17%, 47%)`
CMYK	`cmyk(17%, 13%, 0%, 53%)`
CIE LAB	`lab(44.47, 1.48, -9)`
CIE LCH	`lch(44.47, 9.12, 279.3)`
CIE XYZ	`xyz(13.696, 14.168, 19.779)`
Decimal	`6580600`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646978, 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 #646978	Ratio	AA	AAA	AA large
Sample text	3.83:1	Fail	Fail	Pass
Sample text	5.48:1	Pass	Fail	Pass

#646978 as text on	Ratio	AA	AAA	AA large
Sample text	5.48:1	Pass	Fail	Pass
Sample text	3.83:1	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 #646978 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646978; }
.text { color: #646978; }
.border { border: 2px solid #646978; }
.transparent { background-color: rgb(100 105 120 / 50%); }
.gradient { background: linear-gradient(to right, #646978, #696478); }

Background

Text color

Border

Similar colors

Questions

What color is #646978?: #646978 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the gray family of colors.
What is the RGB value of #646978?: The RGB value is 100, 105, 120: 100 red, 105 green and 120 blue on a 0 to 255 scale.
What is the complementary color of #646978?: The complementary color is #787364, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646978?: White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.