What color is #3100FF?

#3100FF is a vivid violet, closest to the named color Overdue Blue. It belongs to the blue family of colors.

What is the RGB value of #3100FF?

The RGB value is 49, 0, 255: 49 red, 0 green and 255 blue on a 0 to 255 scale.

What is the complementary color of #3100FF?

The complementary color is #CEFF00, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3100FF?

White text. Black text has a contrast ratio of 2.57:1 and white text 8.16:1. WCAG asks for at least 4.5:1 for normal text.

#3100FF color

#3100FF rgb(49, 0, 255)

Shades of blue

The hex color #3100FF is a vivid violet.

In the RGB color model it is made of 19.2% red, 0% green and 100% blue (49, 0, 255).

Its hue angle is 252°, with 100% saturation and 50% lightness. For print, the CMYK equivalent is 81% cyan, 100% magenta, 0% yellow and 0% black.

The closest named color is Overdue Blue (#4400FF), a difference of 1.2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.16:1).

#3100FF color codes

HEX	`#3100FF`
RGB	`rgb(49, 0, 255)`
RGB percent	`rgb(19.2%, 0%, 100%)`
HSL	`hsl(252, 100%, 50%)`
HSV / HSB	`hsv(252, 100%, 100%)`
CMYK	`cmyk(81%, 100%, 0%, 0%)`
CIE LAB	`lab(33.71, 79.66, -105.46)`
CIE LCH	`lch(33.71, 132.17, 307.07)`
CIE XYZ	`xyz(19.311, 7.871, 95.09)`
Decimal	`3211519`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3100FF, 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 #3100FF	Ratio	AA	AAA	AA large
Sample text	2.57:1	Fail	Fail	Fail
Sample text	8.16:1	Pass	Pass	Pass

#3100FF as text on	Ratio	AA	AAA	AA large
Sample text	8.16:1	Pass	Pass	Pass
Sample text	2.57:1	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 #3100FF looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3100ff; }
.text { color: #3100ff; }
.border { border: 2px solid #3100ff; }
.transparent { background-color: rgb(49 0 255 / 50%); }
.gradient { background: linear-gradient(to right, #3100ff, #b000ff); }

Background

Text color

Border

Similar colors

Questions

What color is #3100FF?: #3100FF is a vivid violet, closest to the named color Overdue Blue. It belongs to the blue family of colors.
What is the RGB value of #3100FF?: The RGB value is 49, 0, 255: 49 red, 0 green and 255 blue on a 0 to 255 scale.
What is the complementary color of #3100FF?: The complementary color is #CEFF00, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3100FF?: White text. Black text has a contrast ratio of 2.57:1 and white text 8.16:1. WCAG asks for at least 4.5:1 for normal text.