What color is #3F404C?

#3F404C is a dark, grayish blue, closest to the named color Midnight Serenade. It belongs to the gray family of colors.

What is the RGB value of #3F404C?

The RGB value is 63, 64, 76: 63 red, 64 green and 76 blue on a 0 to 255 scale.

What is the complementary color of #3F404C?

The complementary color is #4C4B3F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F404C?

White text. Black text has a contrast ratio of 2.05:1 and white text 10.25:1. WCAG asks for at least 4.5:1 for normal text.

#3F404C color

#3F404C rgb(63, 64, 76)

Shades of gray

The hex color #3F404C is a dark, grayish blue.

In the RGB color model it is made of 24.7% red, 25.1% green and 29.8% blue (63, 64, 76).

Its hue angle is 235°, with 9% saturation and 27% lightness. For print, the CMYK equivalent is 17% cyan, 16% magenta, 0% yellow and 70% black.

The closest named color is Midnight Serenade (#41434E), a difference of 1.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.25:1).

#3F404C color codes

HEX	`#3F404C`
RGB	`rgb(63, 64, 76)`
RGB percent	`rgb(24.7%, 25.1%, 29.8%)`
HSL	`hsl(235, 9%, 27%)`
HSV / HSB	`hsv(235, 17%, 30%)`
CMYK	`cmyk(17%, 16%, 0%, 70%)`
CIE LAB	`lab(27.42, 2.49, -7.39)`
CIE LCH	`lch(27.42, 7.8, 288.65)`
CIE XYZ	`xyz(5.188, 5.245, 7.575)`
Decimal	`4145228`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F404C, 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 #3F404C	Ratio	AA	AAA	AA large
Sample text	2.05:1	Fail	Fail	Fail
Sample text	10.25:1	Pass	Pass	Pass

#3F404C as text on	Ratio	AA	AAA	AA large
Sample text	10.25:1	Pass	Pass	Pass
Sample text	2.05:1	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 #3F404C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f404c; }
.text { color: #3f404c; }
.border { border: 2px solid #3f404c; }
.transparent { background-color: rgb(63 64 76 / 50%); }
.gradient { background: linear-gradient(to right, #3f404c, #453f4c); }

Background

Text color

Border

Similar colors

Closest common color name: Graphite.

Questions

What color is #3F404C?: #3F404C is a dark, grayish blue, closest to the named color Midnight Serenade. It belongs to the gray family of colors.
What is the RGB value of #3F404C?: The RGB value is 63, 64, 76: 63 red, 64 green and 76 blue on a 0 to 255 scale.
What is the complementary color of #3F404C?: The complementary color is #4C4B3F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F404C?: White text. Black text has a contrast ratio of 2.05:1 and white text 10.25:1. WCAG asks for at least 4.5:1 for normal text.