What color is #645D99?

#645D99 is a grayish blue, closest to the named color Wizard’s Potion. It belongs to the blue family of colors.

What is the RGB value of #645D99?

The RGB value is 100, 93, 153: 100 red, 93 green and 153 blue on a 0 to 255 scale.

What is the complementary color of #645D99?

The complementary color is #92995D, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645D99?

White text. Black text has a contrast ratio of 3.57:1 and white text 5.89:1. WCAG asks for at least 4.5:1 for normal text.

#645D99 color

#645D99 rgb(100, 93, 153)

Shades of blue

The hex color #645D99 is a grayish blue.

In the RGB color model it is made of 39.2% red, 36.5% green and 60% blue (100, 93, 153).

Its hue angle is 247°, with 24% saturation and 48% lightness. For print, the CMYK equivalent is 35% cyan, 39% magenta, 0% yellow and 40% black.

The closest named color is Wizard’s Potion (#5D6098), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.89:1).

#645D99 color codes

HEX	`#645D99`
RGB	`rgb(100, 93, 153)`
RGB percent	`rgb(39.2%, 36.5%, 60%)`
HSL	`hsl(247, 24%, 48%)`
HSV / HSB	`hsv(247, 39%, 60%)`
CMYK	`cmyk(35%, 39%, 0%, 40%)`
CIE LAB	`lab(42.52, 17.48, -31.83)`
CIE LCH	`lch(42.52, 36.32, 298.77)`
CIE XYZ	`xyz(14.918, 12.838, 31.823)`
Decimal	`6577561`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645D99, 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 #645D99	Ratio	AA	AAA	AA large
Sample text	3.57:1	Fail	Fail	Pass
Sample text	5.89:1	Pass	Fail	Pass

#645D99 as text on	Ratio	AA	AAA	AA large
Sample text	5.89:1	Pass	Fail	Pass
Sample text	3.57:1	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 #645D99 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645d99; }
.text { color: #645d99; }
.border { border: 2px solid #645d99; }
.transparent { background-color: rgb(100 93 153 / 50%); }
.gradient { background: linear-gradient(to right, #645d99, #825d99); }

Background

Text color

Border

Similar colors

Closest common color name: Royal Purple.

Questions

What color is #645D99?: #645D99 is a grayish blue, closest to the named color Wizard’s Potion. It belongs to the blue family of colors.
What is the RGB value of #645D99?: The RGB value is 100, 93, 153: 100 red, 93 green and 153 blue on a 0 to 255 scale.
What is the complementary color of #645D99?: The complementary color is #92995D, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645D99?: White text. Black text has a contrast ratio of 3.57:1 and white text 5.89:1. WCAG asks for at least 4.5:1 for normal text.