What color is #645AAF?

#645AAF is a desaturated blue, closest to the named color Simply Purple. It belongs to the blue family of colors.

What is the RGB value of #645AAF?

The RGB value is 100, 90, 175: 100 red, 90 green and 175 blue on a 0 to 255 scale.

What is the complementary color of #645AAF?

The complementary color is #A5AF5A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645AAF?

White text. Black text has a contrast ratio of 3.62:1 and white text 5.8:1. WCAG asks for at least 4.5:1 for normal text.

#645AAF color

#645AAF rgb(100, 90, 175)

Shades of blue

The hex color #645AAF is a desaturated blue.

In the RGB color model it is made of 39.2% red, 35.3% green and 68.6% blue (100, 90, 175).

Its hue angle is 247°, with 35% saturation and 52% lightness. For print, the CMYK equivalent is 43% cyan, 49% magenta, 0% yellow and 31% black.

The closest named color is Simply Purple (#715BB1), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.8:1).

#645AAF color codes

HEX	`#645AAF`
RGB	`rgb(100, 90, 175)`
RGB percent	`rgb(39.2%, 35.3%, 68.6%)`
HSL	`hsl(247, 35%, 52%)`
HSV / HSB	`hsv(247, 49%, 69%)`
CMYK	`cmyk(43%, 49%, 0%, 31%)`
CIE LAB	`lab(42.94, 25.71, -44.21)`
CIE LCH	`lch(42.94, 51.14, 300.18)`
CIE XYZ	`xyz(16.647, 13.116, 42.204)`
Decimal	`6576815`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645AAF, 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 #645AAF	Ratio	AA	AAA	AA large
Sample text	3.62:1	Fail	Fail	Pass
Sample text	5.8:1	Pass	Fail	Pass

#645AAF as text on	Ratio	AA	AAA	AA large
Sample text	5.8:1	Pass	Fail	Pass
Sample text	3.62:1	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 #645AAF looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645aaf; }
.text { color: #645aaf; }
.border { border: 2px solid #645aaf; }
.transparent { background-color: rgb(100 90 175 / 50%); }
.gradient { background: linear-gradient(to right, #645aaf, #8e5aaf); }

Background

Text color

Border

Similar colors

Questions

What color is #645AAF?: #645AAF is a desaturated blue, closest to the named color Simply Purple. It belongs to the blue family of colors.
What is the RGB value of #645AAF?: The RGB value is 100, 90, 175: 100 red, 90 green and 175 blue on a 0 to 255 scale.
What is the complementary color of #645AAF?: The complementary color is #A5AF5A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645AAF?: White text. Black text has a contrast ratio of 3.62:1 and white text 5.8:1. WCAG asks for at least 4.5:1 for normal text.