What color is #64688B?

#64688B is a grayish blue, closest to the named color Heron. It belongs to the blue family of colors.

What is the RGB value of #64688B?

The RGB value is 100, 104, 139: 100 red, 104 green and 139 blue on a 0 to 255 scale.

What is the complementary color of #64688B?

The complementary color is #8B8764, found by rotating the hue 180° on the color wheel.

Is black or white text better on #64688B?

White text. Black text has a contrast ratio of 3.89:1 and white text 5.39:1. WCAG asks for at least 4.5:1 for normal text.

#64688B color

#64688B rgb(100, 104, 139)

Shades of blue

The hex color #64688B is a grayish blue.

In the RGB color model it is made of 39.2% red, 40.8% green and 54.5% blue (100, 104, 139).

Its hue angle is 234°, with 16% saturation and 47% lightness. For print, the CMYK equivalent is 28% cyan, 25% magenta, 0% yellow and 45% black.

The closest named color is Heron (#6A6887), a difference of 2.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.39:1).

#64688B color codes

HEX	`#64688B`
RGB	`rgb(100, 104, 139)`
RGB percent	`rgb(39.2%, 40.8%, 54.5%)`
HSL	`hsl(234, 16%, 47%)`
HSV / HSB	`hsv(234, 28%, 55%)`
CMYK	`cmyk(28%, 25%, 0%, 45%)`
CIE LAB	`lab(44.9, 6.87, -19.75)`
CIE LCH	`lch(44.9, 20.91, 289.17)`
CIE XYZ	`xyz(14.865, 14.474, 26.432)`
Decimal	`6580363`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #64688B, 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 #64688B	Ratio	AA	AAA	AA large
Sample text	3.89:1	Fail	Fail	Pass
Sample text	5.39:1	Pass	Fail	Pass

#64688B as text on	Ratio	AA	AAA	AA large
Sample text	5.39:1	Pass	Fail	Pass
Sample text	3.89:1	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 #64688B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #64688b; }
.text { color: #64688b; }
.border { border: 2px solid #64688b; }
.transparent { background-color: rgb(100 104 139 / 50%); }
.gradient { background: linear-gradient(to right, #64688b, #73648b); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #64688B?: #64688B is a grayish blue, closest to the named color Heron. It belongs to the blue family of colors.
What is the RGB value of #64688B?: The RGB value is 100, 104, 139: 100 red, 104 green and 139 blue on a 0 to 255 scale.
What is the complementary color of #64688B?: The complementary color is #8B8764, found by rotating the hue 180° on the color wheel.
Is black or white text better on #64688B?: White text. Black text has a contrast ratio of 3.89:1 and white text 5.39:1. WCAG asks for at least 4.5:1 for normal text.