What color is #40423F?

#40423F is a dark gray, closest to the named color Vulcanised. It belongs to the gray family of colors.

What is the RGB value of #40423F?

The RGB value is 64, 66, 63: 64 red, 66 green and 63 blue on a 0 to 255 scale.

What is the complementary color of #40423F?

The complementary color is #413F42, found by rotating the hue 180° on the color wheel.

Is black or white text better on #40423F?

White text. Black text has a contrast ratio of 2.07:1 and white text 10.15:1. WCAG asks for at least 4.5:1 for normal text.

#40423F color

#40423F rgb(64, 66, 63)

Shades of gray

The hex color #40423F is a dark gray.

In the RGB color model it is made of 25.1% red, 25.9% green and 24.7% blue (64, 66, 63).

Its hue angle is 100°, with 2% saturation and 25% lightness. For print, the CMYK equivalent is 3% cyan, 0% magenta, 5% yellow and 74% black.

The closest named color is Vulcanised (#424443), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.15:1).

#40423F color codes

HEX	`#40423F`
RGB	`rgb(64, 66, 63)`
RGB percent	`rgb(25.1%, 25.9%, 24.7%)`
HSL	`hsl(100, 2%, 25%)`
HSV / HSB	`hsv(100, 5%, 26%)`
CMYK	`cmyk(3%, 0%, 5%, 74%)`
CIE LAB	`lab(27.7, -1.51, 1.53)`
CIE LCH	`lch(27.7, 2.15, 134.51)`
CIE XYZ	`xyz(4.96, 5.345, 5.472)`
Decimal	`4211263`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #40423F, 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 #40423F	Ratio	AA	AAA	AA large
Sample text	2.07:1	Fail	Fail	Fail
Sample text	10.15:1	Pass	Pass	Pass

#40423F as text on	Ratio	AA	AAA	AA large
Sample text	10.15:1	Pass	Pass	Pass
Sample text	2.07:1	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 #40423F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #40423f; }
.text { color: #40423f; }
.border { border: 2px solid #40423f; }
.transparent { background-color: rgb(64 66 63 / 50%); }
.gradient { background: linear-gradient(to right, #40423f, #3f4240); }

Background

Text color

Border

Similar colors

Questions

What color is #40423F?: #40423F is a dark gray, closest to the named color Vulcanised. It belongs to the gray family of colors.
What is the RGB value of #40423F?: The RGB value is 64, 66, 63: 64 red, 66 green and 63 blue on a 0 to 255 scale.
What is the complementary color of #40423F?: The complementary color is #413F42, found by rotating the hue 180° on the color wheel.
Is black or white text better on #40423F?: White text. Black text has a contrast ratio of 2.07:1 and white text 10.15:1. WCAG asks for at least 4.5:1 for normal text.