Cinnabar Color Codes
Cinnabar is a mid-tone, saturated red with the hex code #E34234, RGB values of 227, 66, 52 and an HSL value of hsl(5, 76%, 55%).
| HEX | #E34234 |
|---|---|
| RGB | 227, 66, 52 |
| HSL | hsl(5, 76%, 55%) |
| HSV | 5°, 77%, 89% |
| CMYK | 0%, 71%, 77%, 11% |
| LAB | 52.38, 61.08, 44.42 |
| CIELCHuv | 52.38, 130.12, 14.25° |
- Nearest Pantone
- PMS 179 C ΔE 5.3 · approximate
- Nearest CSS name
-
tomatoΔE 10.5
Source Wikipedia, List of colors (cites Maerz and Paul)
Cinnabar Color Hex Code
The Cinnabar color hex code is #E34234. Those six digits are three pairs, E3 for red, 42 for green and 34 for blue, which is the same triplet a browser reads from the CSS value below.
#E34234
Cinnabar Color RGB Code
The Cinnabar RGB code is rgb(227, 66, 52). Red carries the most light at 227 of 255, which is what puts this color where it sits on the wheel.
rgb(227, 66, 52)
Cinnabar Color HSV Code
The Cinnabar HSV code is 5°, 77%, 89%. Read it as a hue of 5 degrees, 77% saturation and 89% value, which is the form most color pickers use because moving one number changes one thing.
5°, 77%, 89%
Cinnabar Color CIELChuv Code
The Cinnabar CIELCHuv code is 52.38, 130.12, 14.25°. Unlike hex or RGB this one is perceptual: lightness 52 means mid-toned to the eye rather than to the screen, and chroma 130 is how far it sits from grey.
52.38, 130.12, 14.25°
Tonal scale
What are Cinnabar 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 Cinnabar Color Palette Codes?
Each of these is a hue rotation from #E34234. They are generated, not curated, so they are exact.
Complementary
Directly opposite sits #34D5E3, a light, 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. Both are saturated, so give the complement much less area than the base or the two will fight.
Analogous
#E3347E and #E39A34 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
#34E342 and #4234E3 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: #34E39A and #347EE3. 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 #34D5E3, and #7EE334 with #9A34E3. 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 Cinnabar 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
4.12:14.12
contrast ratio on white 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 |
Black background
5.10:15.10
contrast ratio on black 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 |
Against white Cinnabar reaches 4.12:1, enough for large text and UI borders, but short of the 4.5:1 that body copy needs. Darken it for anything set small. Text placed on it should be black, which gives 5.10:1.
Color vision
How Cinnabar 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#B4B338
Cinnabar changes substantially here. ΔE 79.4
No working red cones. Reds darken sharply and drift toward the same muddy olive as green.
Deuteranopia
About 1% of men#BCC439
Cinnabar changes substantially here. ΔE 86.6
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#DE3B3B
Cinnabar shifts slightly here. ΔE 6.3
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#7D7D7D
Cinnabar changes substantially here. ΔE 75.5
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, Cinnabar reads as #BCC439. That is a shift of ΔE 86.6, 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 86.6. 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 Cinnabar in code
:root {
--cinnabar: #E34234;
}
.example {
color: var(--cinnabar);
}// tailwind.config.js
theme: {
extend: {
colors: {
'cinnabar': '#E34234',
},
},
}// SwiftUI takes 0–1 components, not 0–255.
let cinnabar = Color(
red: 0.890,
green: 0.259,
blue: 0.204
)<!-- res/values/colors.xml -->
<color name="cinnabar">#E34234</color>// Flutter wants ARGB: FF for full opacity, then the hex.
const cinnabar = Color(0xFFE34234);