What color is #4037EF?

#4037EF is a vivid blue, closest to the named color Vivid Blue. It belongs to the blue family of colors.

What is the RGB value of #4037EF?

The RGB value is 64, 55, 239: 64 red, 55 green and 239 blue on a 0 to 255 scale.

What is the complementary color of #4037EF?

The complementary color is #E6EF37, found by rotating the hue 180° on the color wheel.

Is black or white text better on #4037EF?

White text. Black text has a contrast ratio of 3.01:1 and white text 6.97:1. WCAG asks for at least 4.5:1 for normal text.

#4037EF color

#4037EF rgb(64, 55, 239)

Shades of blue

The hex color #4037EF is a vivid blue.

In the RGB color model it is made of 25.1% red, 21.6% green and 93.7% blue (64, 55, 239).

Its hue angle is 243°, with 85% saturation and 58% lightness. For print, the CMYK equivalent is 73% cyan, 77% magenta, 0% yellow and 6% black.

The closest named color is Vivid Blue (#152EFF), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 6.97:1).

#4037EF color codes

HEX	`#4037EF`
RGB	`rgb(64, 55, 239)`
RGB percent	`rgb(25.1%, 21.6%, 93.7%)`
HSL	`hsl(243, 85%, 58%)`
HSV / HSB	`hsv(243, 77%, 94%)`
CMYK	`cmyk(73%, 77%, 0%, 6%)`
CIE LAB	`lab(37.94, 60.15, -89.4)`
CIE LCH	`lch(37.94, 107.75, 303.94)`
CIE XYZ	`xyz(19.055, 10.052, 82.581)`
Decimal	`4208623`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #4037EF, 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 #4037EF	Ratio	AA	AAA	AA large
Sample text	3.01:1	Fail	Fail	Pass
Sample text	6.97:1	Pass	Fail	Pass

#4037EF as text on	Ratio	AA	AAA	AA large
Sample text	6.97:1	Pass	Fail	Pass
Sample text	3.01:1	Fail	Fail	Pass

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 #4037EF looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #4037ef; }
.text { color: #4037ef; }
.border { border: 2px solid #4037ef; }
.transparent { background-color: rgb(64 55 239 / 50%); }
.gradient { background: linear-gradient(to right, #4037ef, #9c37ef); }

Background

Text color

Border

Similar colors

Closest common color name: Blue.

Questions

What color is #4037EF?: #4037EF is a vivid blue, closest to the named color Vivid Blue. It belongs to the blue family of colors.
What is the RGB value of #4037EF?: The RGB value is 64, 55, 239: 64 red, 55 green and 239 blue on a 0 to 255 scale.
What is the complementary color of #4037EF?: The complementary color is #E6EF37, found by rotating the hue 180° on the color wheel.
Is black or white text better on #4037EF?: White text. Black text has a contrast ratio of 3.01:1 and white text 6.97:1. WCAG asks for at least 4.5:1 for normal text.