Red Alert color: hex code #FF0F0F
Red Alert has the hex code #FF0F0F. It is a vivid red.
In the RGB color model it is made of 100% red, 5.9% green and 5.9% blue (255, 15, 15).
Its hue angle is 0°, with 100% saturation and 53% lightness. For print, the CMYK equivalent is 0% cyan, 94% magenta, 94% yellow and 0% black.
Black text is the more readable choice on this background (contrast 5.33:1).
Red Alert (#FF0F0F) color codes
| HEX | #FF0F0F | |
|---|---|---|
| RGB | rgb(255, 15, 15) | |
| RGB percent | rgb(100%, 5.9%, 5.9%) | |
| HSL | hsl(0, 100%, 53%) | |
| HSV / HSB | hsv(0, 94%, 100%) | |
| CMYK | cmyk(0%, 94%, 94%, 0%) | |
| CIE LAB | lab(53.65, 79.13, 63.66) | |
| CIE LCH | lch(53.65, 101.56, 38.82) | |
| CIE XYZ | xyz(41.503, 21.643, 2.444) | |
| Decimal | 16715535 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with Red Alert, 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 #FF0F0F | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 5.33:1 | Pass | Fail | Pass |
| Sample text | 3.94:1 | Fail | Fail | Pass |
| #FF0F0F as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 3.94:1 | Fail | Fail | Pass |
| Sample text | 5.33:1 | Pass | 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 #FF0F0F looks to people with the most common types of color vision deficiency.
#6e6103Protanopia
no red cones#a49100Deuteranopia
no green cones#ff0019Tritanopia
no blue cones#808080Achromatopsia
no color vision
CSS examples
.background { background-color: #ff0f0f; }
.text { color: #ff0f0f; }
.border { border: 2px solid #ff0f0f; }
.transparent { background-color: rgb(255 15 15 / 50%); }
.gradient { background: linear-gradient(to right, #ff0f0f, #ff870f); }Similar colors
#ff0e0eDanger#ff1111Spicy#ff1414Little Ladybug#ff0008Marinara Red#ff0303Left on Red#ff0d04Shocking Crimson#fe0002Fire Engine#ff0015British Phone Booth
Closest common color name: Red.
See #FF0F0F on its hex code page
Questions
- What color is #FF0F0F?
- #FF0F0F is a vivid red known as Red Alert. It belongs to the red family of colors.
- What is the RGB value of Red Alert?
- The RGB value is 255, 15, 15: 255 red, 15 green and 15 blue on a 0 to 255 scale.
- What is the complementary color of Red Alert?
- The complementary color is #0FFFFF, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #FF0F0F?
- Black text. Black text has a contrast ratio of 5.33:1 and white text 3.94:1. WCAG asks for at least 4.5:1 for normal text.