What color is #233F6B?

#233F6B is a dark, moderate azure, closest to the named color Nightlife. It belongs to the blue family of colors.

What is the RGB value of #233F6B?

The RGB value is 35, 63, 107: 35 red, 63 green and 107 blue on a 0 to 255 scale.

What is the complementary color of #233F6B?

The complementary color is #6B4F23, found by rotating the hue 180° on the color wheel.

Is black or white text better on #233F6B?

White text. Black text has a contrast ratio of 1.99:1 and white text 10.53:1. WCAG asks for at least 4.5:1 for normal text.

#233F6B color

#233F6B rgb(35, 63, 107)

Shades of blue

The hex color #233F6B is a dark, moderate azure.

In the RGB color model it is made of 13.7% red, 24.7% green and 42% blue (35, 63, 107).

Its hue angle is 217°, with 51% saturation and 28% lightness. For print, the CMYK equivalent is 67% cyan, 41% magenta, 0% yellow and 58% black.

The closest named color is Nightlife (#27426B), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.53:1).

#233F6B color codes

HEX	`#233F6B`
RGB	`rgb(35, 63, 107)`
RGB percent	`rgb(13.7%, 24.7%, 42%)`
HSL	`hsl(217, 51%, 28%)`
HSV / HSB	`hsv(217, 67%, 42%)`
CMYK	`cmyk(67%, 41%, 0%, 58%)`
CIE LAB	`lab(26.66, 5, -28.81)`
CIE LCH	`lch(26.66, 29.24, 279.85)`
CIE XYZ	`xyz(5.124, 4.973, 14.597)`
Decimal	`2309995`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #233F6B, 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 #233F6B	Ratio	AA	AAA	AA large
Sample text	1.99:1	Fail	Fail	Fail
Sample text	10.53:1	Pass	Pass	Pass

#233F6B as text on	Ratio	AA	AAA	AA large
Sample text	10.53:1	Pass	Pass	Pass
Sample text	1.99:1	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 #233F6B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #233f6b; }
.text { color: #233f6b; }
.border { border: 2px solid #233f6b; }
.transparent { background-color: rgb(35 63 107 / 50%); }
.gradient { background: linear-gradient(to right, #233f6b, #2b236b); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #233F6B?: #233F6B is a dark, moderate azure, closest to the named color Nightlife. It belongs to the blue family of colors.
What is the RGB value of #233F6B?: The RGB value is 35, 63, 107: 35 red, 63 green and 107 blue on a 0 to 255 scale.
What is the complementary color of #233F6B?: The complementary color is #6B4F23, found by rotating the hue 180° on the color wheel.
Is black or white text better on #233F6B?: White text. Black text has a contrast ratio of 1.99:1 and white text 10.53:1. WCAG asks for at least 4.5:1 for normal text.