What color is #40445B?

#40445B is a dark, grayish blue, closest to the named color Lava Stone. It belongs to the blue family of colors.

What is the RGB value of #40445B?

The RGB value is 64, 68, 91: 64 red, 68 green and 91 blue on a 0 to 255 scale.

What is the complementary color of #40445B?

The complementary color is #5B5740, found by rotating the hue 180° on the color wheel.

Is black or white text better on #40445B?

White text. Black text has a contrast ratio of 2.2:1 and white text 9.56:1. WCAG asks for at least 4.5:1 for normal text.

#40445B color

#40445B rgb(64, 68, 91)

Shades of blue

The hex color #40445B is a dark, grayish blue.

In the RGB color model it is made of 25.1% red, 26.7% green and 35.7% blue (64, 68, 91).

Its hue angle is 231°, with 17% saturation and 30% lightness. For print, the CMYK equivalent is 30% cyan, 25% magenta, 0% yellow and 64% black.

The closest named color is Lava Stone (#3C4151), a difference of 3.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 9.56:1).

#40445B color codes

HEX	`#40445B`
RGB	`rgb(64, 68, 91)`
RGB percent	`rgb(25.1%, 26.7%, 35.7%)`
HSL	`hsl(231, 17%, 30%)`
HSV / HSB	`hsv(231, 30%, 36%)`
CMYK	`cmyk(30%, 25%, 0%, 64%)`
CIE LAB	`lab(29.36, 4.33, -14.17)`
CIE LCH	`lch(29.36, 14.82, 286.99)`
CIE XYZ	`xyz(6.069, 5.979, 10.73)`
Decimal	`4211803`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #40445B, 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 #40445B	Ratio	AA	AAA	AA large
Sample text	2.2:1	Fail	Fail	Fail
Sample text	9.56:1	Pass	Pass	Pass

#40445B as text on	Ratio	AA	AAA	AA large
Sample text	9.56:1	Pass	Pass	Pass
Sample text	2.2:1	Fail	Fail	Fail

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 #40445B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #40445b; }
.text { color: #40445b; }
.border { border: 2px solid #40445b; }
.transparent { background-color: rgb(64 68 91 / 50%); }
.gradient { background: linear-gradient(to right, #40445b, #49405b); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #40445B?: #40445B is a dark, grayish blue, closest to the named color Lava Stone. It belongs to the blue family of colors.
What is the RGB value of #40445B?: The RGB value is 64, 68, 91: 64 red, 68 green and 91 blue on a 0 to 255 scale.
What is the complementary color of #40445B?: The complementary color is #5B5740, found by rotating the hue 180° on the color wheel.
Is black or white text better on #40445B?: White text. Black text has a contrast ratio of 2.2:1 and white text 9.56:1. WCAG asks for at least 4.5:1 for normal text.