Fire Brick Color Codes
Fire Brick is a dark, saturated red with the hex code #B22222, RGB values of 178, 34, 34 and an HSL value of hsl(0, 68%, 42%).
| HEX | #B22222 |
|---|---|
| RGB | 178, 34, 34 |
| HSL | hsl(0, 68%, 42%) |
| HSV | 0°, 81%, 70% |
| CMYK | 0%, 81%, 81%, 30% |
| LAB | 39.12, 55.92, 37.65 |
| CIELCHuv | 39.12, 110.02, 12.17° |
- Nearest Pantone
- PMS 1805 C ΔE 3.3 · approximate
- Nearest CSS name
-
firebrickΔE 0.0
Source CSS Color Module Level 4 keyword 'FireBrick'
Fire Brick Color Hex Code
The Fire Brick color hex code is #B22222. Those six digits are three pairs, B2 for red, 22 for green and 22 for blue, which is the same triplet a browser reads from the CSS value below.
#B22222
Fire Brick Color RGB Code
The Fire Brick RGB code is rgb(178, 34, 34). Red carries the most light at 178 of 255, which is what puts this color where it sits on the wheel.
rgb(178, 34, 34)
Fire Brick Color HSV Code
The Fire Brick HSV code is 0°, 81%, 70%. Read it as a hue of 0 degrees, 81% saturation and 70% value, which is the form most color pickers use because moving one number changes one thing.
0°, 81%, 70%
Fire Brick Color CIELChuv Code
The Fire Brick CIELCHuv code is 39.12, 110.02, 12.17°. Unlike hex or RGB this one is perceptual: lightness 39 means mid-toned to the eye rather than to the screen, and chroma 110 is how far it sits from grey.
39.12, 110.02, 12.17°
Tonal scale
What are Fire Brick Color Palettes?
A shade mixes toward black, a tint toward white, a tone toward grey. Every step keeps the hue and is copy-ready.
Shades, toward black
Tints, toward white
Tones, toward grey
Palettes
What are Fire Brick Color Palette Codes?
Each of these is a hue rotation from #B22222. They are generated, not curated, so they are exact.
Complementary
Directly opposite sits #22B2B2, a mid-tone, saturated teal. No other pairing separates two hues further, so this is the one to reach for when a single element has to win attention. Neither is especially saturated, so this pairing stays calm enough for large areas of both.
Analogous
#B2226A and #B26A22 sit 30 degrees either side. All three share most of their hue, so the set reads as one family instead of three separate decisions. Good for backgrounds and for state variations that should not announce themselves.
Triadic
#22B222 and #2222B2 complete an even 120 degree split. Three fully independent hues, so one has to lead: keep this base dominant and let the other two appear in small quantities.
Split-complementary
Instead of the direct complement, this takes the two hues either side of it: #22B26A and #226AB2. Almost the same contrast, without the edge shimmer a true complementary pair produces at high saturation.
Tetradic
Two complementary pairs forming a rectangle: this base with #22B2B2, and #6AB222 with #6A22B2. The richest of the five and the hardest to balance, so treat this base as the lead and hold the other three well back.
Accessibility
Contrast checker: is Fire Brick accessible?
Measured against white and against black, with a separate verdict for each element type. Small text, large text and UI components have different thresholds, so one pass or fail for the whole color would be wrong roughly a third of the time.
White background
6.68:16.68
contrast ratio on white background
| Element | AA | AAA |
|---|---|---|
| Small text needs 4.5:1 / 7:1 | Passes | Fails |
| Large text needs 3:1 / 4.5:1 | Passes | Passes |
| UI component needs 3:1 | Passes | n/a |
Black background
3.14:13.14
contrast ratio on black background
| Element | AA | AAA |
|---|---|---|
| Small text needs 4.5:1 / 7:1 | Fails | Fails |
| Large text needs 3:1 / 4.5:1 | Passes | Fails |
| UI component needs 3:1 | Passes | n/a |
Fire Brick clears WCAG AA against white at 6.68:1, so it is safe for body copy as well as headings. Text placed on it should be white, which gives 6.68:1.
Color vision
How Fire Brick looks with color blindness
Around 300 million people see color differently from the way it is specified. Each card shows the actual color beside how it appears, and how common that form of vision is.
Protanopia
About 1% of men#8B8A22
Fire Brick changes substantially here. ΔE 71.7
No working red cones. Reds darken sharply and drift toward the same muddy olive as green.
Deuteranopia
About 1% of men#919922
Fire Brick changes substantially here. ΔE 78.8
No working green cones. With the milder deuteranomaly at nearer 6% of men, this is by far the most common form, and the one worth designing around.
Tritanopia
About 1 in 10,000#AE2222
Fire Brick holds up almost unchanged here. ΔE 1.8
No working blue cones. Blues shift toward green and yellows toward pink. Rare, and unlike the others it is not sex-linked, so it affects men and women equally.
Achromatopsia
About 1 in 30,000#5C5C5C
Fire Brick changes substantially here. ΔE 67.4
No color vision at all. Also a fair proxy for how the color survives a greyscale print or a failing screen.
To a deuteranope, the most common form, Fire Brick reads as #919922. That is a shift of ΔE 78.8, so it is a different color to roughly one man in sixteen. It sits in the red end of the spectrum, which is exactly where red-green deficiency does its damage. Never pair it with a green of similar lightness to signal a difference in meaning: to a large minority the two become one color. The widest shift is under deuteranopia, at ΔE 78.8. The rule this leads to needs no simulator: never let color be the only thing carrying a message. Add a label, an icon, or a clear difference in lightness, and the problem disappears for everyone.
Snippets
Using Fire Brick in code
:root {
--fire-brick: #B22222;
}
.example {
color: var(--fire-brick);
}// tailwind.config.js
theme: {
extend: {
colors: {
'fire-brick': '#B22222',
},
},
}// SwiftUI takes 0–1 components, not 0–255.
let fireBrick = Color(
red: 0.698,
green: 0.133,
blue: 0.133
)<!-- res/values/colors.xml -->
<color name="fire_brick">#B22222</color>// Flutter wants ARGB: FF for full opacity, then the hex.
const fireBrick = Color(0xFFB22222);