#191B4E color
The hex color #191B4E is a dark, moderate blue.
In the RGB color model it is made of 9.8% red, 10.6% green and 30.6% blue (25, 27, 78).
Its hue angle is 238°, with 51% saturation and 20% lightness. For print, the CMYK equivalent is 68% cyan, 65% magenta, 0% yellow and 69% black.
The closest named color is Fly-by-Night (#1C1E4D), a difference of 1.3 ΔE, which is barely visible.
White text is the more readable choice on this background (contrast 16.05:1).
#191B4E color codes
| HEX | #191B4E | |
|---|---|---|
| RGB | rgb(25, 27, 78) | |
| RGB percent | rgb(9.8%, 10.6%, 30.6%) | |
| HSL | hsl(238, 51%, 20%) | |
| HSV / HSB | hsv(238, 68%, 31%) | |
| CMYK | cmyk(68%, 65%, 0%, 69%) | |
| CIE LAB | lab(12.86, 17.38, -31.82) | |
| CIE LCH | lch(12.86, 36.25, 298.65) | |
| CIE XYZ | xyz(2.168, 1.54, 7.389) | |
| Decimal | 1645390 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #191B4E, 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 #191B4E | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.31:1 | Fail | Fail | Fail |
| Sample text | 16.05:1 | Pass | Pass | Pass |
| #191B4E as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 16.05:1 | Pass | Pass | Pass |
| Sample text | 1.31:1 | 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 #191B4E looks to people with the most common types of color vision deficiency.
#002450Protanopia
no red cones#001f4dDeuteranopia
no green cones#002731Tritanopia
no blue cones#212121Achromatopsia
no color vision
CSS examples
.background { background-color: #191b4e; }
.text { color: #191b4e; }
.border { border: 2px solid #191b4e; }
.transparent { background-color: rgb(25 27 78 / 50%); }
.gradient { background: linear-gradient(to right, #191b4e, #32194e); }
Similar colors
#1c1e4dFly-by-Night#222255Spacescape#231c4dSilent Orbit#211d49Azulado#111144Deadly Depths#112255Dark Soul#112358Fibonacci Blue#2a2551Pāua
Closest common color name: Oxford Blue.
Questions
- What color is #191B4E?
- #191B4E is a dark, moderate blue, closest to the named color Fly-by-Night. It belongs to the blue family of colors.
- What is the RGB value of #191B4E?
- The RGB value is 25, 27, 78: 25 red, 27 green and 78 blue on a 0 to 255 scale.
- What is the complementary color of #191B4E?
- The complementary color is #4E4C19, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #191B4E?
- White text. Black text has a contrast ratio of 1.31:1 and white text 16.05:1. WCAG asks for at least 4.5:1 for normal text.