What color is #647A99?

#647A99 is a grayish azure, closest to the named color Quiet Harbour. It belongs to the blue family of colors.

What is the RGB value of #647A99?

The RGB value is 100, 122, 153: 100 red, 122 green and 153 blue on a 0 to 255 scale.

What is the complementary color of #647A99?

The complementary color is #998364, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647A99?

Black text. Black text has a contrast ratio of 4.79:1 and white text 4.39:1. WCAG asks for at least 4.5:1 for normal text.

#647A99 color

#647A99 rgb(100, 122, 153)

Shades of blue

The hex color #647A99 is a grayish azure.

In the RGB color model it is made of 39.2% red, 47.8% green and 60% blue (100, 122, 153).

Its hue angle is 215°, with 21% saturation and 50% lightness. For print, the CMYK equivalent is 35% cyan, 20% magenta, 0% yellow and 40% black.

The closest named color is Quiet Harbour (#5A789A), a difference of 2.5 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 4.79:1).

#647A99 color codes

HEX	`#647A99`
RGB	`rgb(100, 122, 153)`
RGB percent	`rgb(39.2%, 47.8%, 60%)`
HSL	`hsl(215, 21%, 50%)`
HSV / HSB	`hsv(215, 35%, 60%)`
CMYK	`cmyk(35%, 20%, 0%, 40%)`
CIE LAB	`lab(50.6, -0.14, -19.29)`
CIE LCH	`lch(50.6, 19.29, 269.57)`
CIE XYZ	`xyz(17.963, 18.928, 32.838)`
Decimal	`6584985`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647A99, 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 #647A99	Ratio	AA	AAA	AA large
Sample text	4.79:1	Pass	Fail	Pass
Sample text	4.39:1	Fail	Fail	Pass

#647A99 as text on	Ratio	AA	AAA	AA large
Sample text	4.39:1	Fail	Fail	Pass
Sample text	4.79:1	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 #647A99 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647a99; }
.text { color: #647a99; }
.border { border: 2px solid #647a99; }
.transparent { background-color: rgb(100 122 153 / 50%); }
.gradient { background: linear-gradient(to right, #647a99, #686499); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #647A99?: #647A99 is a grayish azure, closest to the named color Quiet Harbour. It belongs to the blue family of colors.
What is the RGB value of #647A99?: The RGB value is 100, 122, 153: 100 red, 122 green and 153 blue on a 0 to 255 scale.
What is the complementary color of #647A99?: The complementary color is #998364, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647A99?: Black text. Black text has a contrast ratio of 4.79:1 and white text 4.39:1. WCAG asks for at least 4.5:1 for normal text.