What color is #645AA3?

#645AA3 is a desaturated blue, closest to the named color Prophet Violet. It belongs to the blue family of colors.

What is the RGB value of #645AA3?

The RGB value is 100, 90, 163: 100 red, 90 green and 163 blue on a 0 to 255 scale.

What is the complementary color of #645AA3?

The complementary color is #99A35A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645AA3?

White text. Black text has a contrast ratio of 3.53:1 and white text 5.94:1. WCAG asks for at least 4.5:1 for normal text.

#645AA3 color

#645AA3 rgb(100, 90, 163)

Shades of blue

The hex color #645AA3 is a desaturated blue.

In the RGB color model it is made of 39.2% red, 35.3% green and 63.9% blue (100, 90, 163).

Its hue angle is 248°, with 29% saturation and 50% lightness. For print, the CMYK equivalent is 39% cyan, 45% magenta, 0% yellow and 36% black.

The closest named color is Prophet Violet (#6F58A6), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.94:1).

#645AA3 color codes

HEX	`#645AA3`
RGB	`rgb(100, 90, 163)`
RGB percent	`rgb(39.2%, 35.3%, 63.9%)`
HSL	`hsl(248, 29%, 50%)`
HSV / HSB	`hsv(248, 45%, 64%)`
CMYK	`cmyk(39%, 45%, 0%, 36%)`
CIE LAB	`lab(42.25, 22.19, -38.2)`
CIE LCH	`lch(42.25, 44.18, 300.16)`
CIE XYZ	`xyz(15.521, 12.666, 36.27)`
Decimal	`6576803`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645AA3, 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 #645AA3	Ratio	AA	AAA	AA large
Sample text	3.53:1	Fail	Fail	Pass
Sample text	5.94:1	Pass	Fail	Pass

#645AA3 as text on	Ratio	AA	AAA	AA large
Sample text	5.94:1	Pass	Fail	Pass
Sample text	3.53:1	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 #645AA3 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645aa3; }
.text { color: #645aa3; }
.border { border: 2px solid #645aa3; }
.transparent { background-color: rgb(100 90 163 / 50%); }
.gradient { background: linear-gradient(to right, #645aa3, #885aa3); }

Background

Text color

Border

Similar colors

Closest common color name: Royal Purple.

Questions

What color is #645AA3?: #645AA3 is a desaturated blue, closest to the named color Prophet Violet. It belongs to the blue family of colors.
What is the RGB value of #645AA3?: The RGB value is 100, 90, 163: 100 red, 90 green and 163 blue on a 0 to 255 scale.
What is the complementary color of #645AA3?: The complementary color is #99A35A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645AA3?: White text. Black text has a contrast ratio of 3.53:1 and white text 5.94:1. WCAG asks for at least 4.5:1 for normal text.