What color is #40403F?

#40403F is a dark gray, closest to the named color Black Panther. It belongs to the gray family of colors.

What is the RGB value of #40403F?

The RGB value is 64, 64, 63: 64 red, 64 green and 63 blue on a 0 to 255 scale.

What is the complementary color of #40403F?

The complementary color is #3F3F40, found by rotating the hue 180° on the color wheel.

Is black or white text better on #40403F?

White text. Black text has a contrast ratio of 2.02:1 and white text 10.38:1. WCAG asks for at least 4.5:1 for normal text.

#40403F color

#40403F rgb(64, 64, 63)

Shades of gray

The hex color #40403F is a dark gray.

In the RGB color model it is made of 25.1% red, 25.1% green and 24.7% blue (64, 64, 63).

Its hue angle is 60°, with 1% saturation and 25% lightness. For print, the CMYK equivalent is 0% cyan, 0% magenta, 2% yellow and 75% black.

The closest named color is Black Panther (#424242), a difference of 1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.38:1).

#40403F color codes

HEX	`#40403F`
RGB	`rgb(64, 64, 63)`
RGB percent	`rgb(25.1%, 25.1%, 24.7%)`
HSL	`hsl(60, 1%, 25%)`
HSV / HSB	`hsv(60, 2%, 25%)`
CMYK	`cmyk(0%, 0%, 2%, 75%)`
CIE LAB	`lab(27.06, -0.22, 0.61)`
CIE LCH	`lch(27.06, 0.65, 110.05)`
CIE XYZ	`xyz(4.845, 5.116, 5.434)`
Decimal	`4210751`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #40403F, 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 #40403F	Ratio	AA	AAA	AA large
Sample text	2.02:1	Fail	Fail	Fail
Sample text	10.38:1	Pass	Pass	Pass

#40403F as text on	Ratio	AA	AAA	AA large
Sample text	10.38:1	Pass	Pass	Pass
Sample text	2.02:1	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 #40403F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #40403f; }
.text { color: #40403f; }
.border { border: 2px solid #40403f; }
.transparent { background-color: rgb(64 64 63 / 50%); }
.gradient { background: linear-gradient(to right, #40403f, #40403f); }

Background

Text color

Border

Similar colors

Questions

What color is #40403F?: #40403F is a dark gray, closest to the named color Black Panther. It belongs to the gray family of colors.
What is the RGB value of #40403F?: The RGB value is 64, 64, 63: 64 red, 64 green and 63 blue on a 0 to 255 scale.
What is the complementary color of #40403F?: The complementary color is #3F3F40, found by rotating the hue 180° on the color wheel.
Is black or white text better on #40403F?: White text. Black text has a contrast ratio of 2.02:1 and white text 10.38:1. WCAG asks for at least 4.5:1 for normal text.