What color is #423F63?

#423F63 is a dark, grayish blue, closest to the named color Storm Is Coming. It belongs to the blue family of colors.

What is the RGB value of #423F63?

The RGB value is 66, 63, 99: 66 red, 63 green and 99 blue on a 0 to 255 scale.

What is the complementary color of #423F63?

The complementary color is #60633F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #423F63?

White text. Black text has a contrast ratio of 2.12:1 and white text 9.89:1. WCAG asks for at least 4.5:1 for normal text.

#423F63 color

#423F63 rgb(66, 63, 99)

Shades of blue

The hex color #423F63 is a dark, grayish blue.

In the RGB color model it is made of 25.9% red, 24.7% green and 38.8% blue (66, 63, 99).

Its hue angle is 245°, with 22% saturation and 32% lightness. For print, the CMYK equivalent is 33% cyan, 36% magenta, 0% yellow and 61% black.

The closest named color is Storm Is Coming (#3D3D63), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.89:1).

#423F63 color codes

HEX	`#423F63`
RGB	`rgb(66, 63, 99)`
RGB percent	`rgb(25.9%, 24.7%, 38.8%)`
HSL	`hsl(245, 22%, 32%)`
HSV / HSB	`hsv(245, 36%, 39%)`
CMYK	`cmyk(33%, 36%, 0%, 61%)`
CIE LAB	`lab(28.42, 10.64, -20.76)`
CIE LCH	`lch(28.42, 23.33, 297.13)`
CIE XYZ	`xyz(6.276, 5.614, 12.555)`
Decimal	`4341603`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #423F63, 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 #423F63	Ratio	AA	AAA	AA large
Sample text	2.12:1	Fail	Fail	Fail
Sample text	9.89:1	Pass	Pass	Pass

#423F63 as text on	Ratio	AA	AAA	AA large
Sample text	9.89:1	Pass	Pass	Pass
Sample text	2.12:1	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 #423F63 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #423f63; }
.text { color: #423f63; }
.border { border: 2px solid #423f63; }
.transparent { background-color: rgb(66 63 99 / 50%); }
.gradient { background: linear-gradient(to right, #423f63, #543f63); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Blue.

Questions

What color is #423F63?: #423F63 is a dark, grayish blue, closest to the named color Storm Is Coming. It belongs to the blue family of colors.
What is the RGB value of #423F63?: The RGB value is 66, 63, 99: 66 red, 63 green and 99 blue on a 0 to 255 scale.
What is the complementary color of #423F63?: The complementary color is #60633F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #423F63?: White text. Black text has a contrast ratio of 2.12:1 and white text 9.89:1. WCAG asks for at least 4.5:1 for normal text.