What color is #3F454C?

#3F454C is a dark, grayish azure, closest to the named color Arsenic. It belongs to the gray family of colors.

What is the RGB value of #3F454C?

The RGB value is 63, 69, 76: 63 red, 69 green and 76 blue on a 0 to 255 scale.

What is the complementary color of #3F454C?

The complementary color is #4C463F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F454C?

White text. Black text has a contrast ratio of 2.17:1 and white text 9.69:1. WCAG asks for at least 4.5:1 for normal text.

#3F454C color

#3F454C rgb(63, 69, 76)

Shades of gray

The hex color #3F454C is a dark, grayish azure.

In the RGB color model it is made of 24.7% red, 27.1% green and 29.8% blue (63, 69, 76).

Its hue angle is 212°, with 9% saturation and 27% lightness. For print, the CMYK equivalent is 17% cyan, 9% magenta, 0% yellow and 70% black.

The closest named color is Arsenic (#3B444B), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.69:1).

#3F454C color codes

HEX	`#3F454C`
RGB	`rgb(63, 69, 76)`
RGB percent	`rgb(24.7%, 27.1%, 29.8%)`
HSL	`hsl(212, 9%, 27%)`
HSV / HSB	`hsv(212, 17%, 30%)`
CMYK	`cmyk(17%, 9%, 0%, 70%)`
CIE LAB	`lab(28.99, -0.74, -5.04)`
CIE LCH	`lch(28.99, 5.09, 261.61)`
CIE XYZ	`xyz(5.482, 5.835, 7.673)`
Decimal	`4146508`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F454C, 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 #3F454C	Ratio	AA	AAA	AA large
Sample text	2.17:1	Fail	Fail	Fail
Sample text	9.69:1	Pass	Pass	Pass

#3F454C as text on	Ratio	AA	AAA	AA large
Sample text	9.69:1	Pass	Pass	Pass
Sample text	2.17:1	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 #3F454C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f454c; }
.text { color: #3f454c; }
.border { border: 2px solid #3f454c; }
.transparent { background-color: rgb(63 69 76 / 50%); }
.gradient { background: linear-gradient(to right, #3f454c, #403f4c); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #3F454C?: #3F454C is a dark, grayish azure, closest to the named color Arsenic. It belongs to the gray family of colors.
What is the RGB value of #3F454C?: The RGB value is 63, 69, 76: 63 red, 69 green and 76 blue on a 0 to 255 scale.
What is the complementary color of #3F454C?: The complementary color is #4C463F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F454C?: White text. Black text has a contrast ratio of 2.17:1 and white text 9.69:1. WCAG asks for at least 4.5:1 for normal text.