Dulux Lost Coral / Fire Cracker 4 / 10YR 21/436
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| Code: | 10YR 21/436 |
| Name: | Lost Coral |
| Brand: | Dulux |
What color is Dulux Lost Coral?
Dulux Lost Coral 10YR 21/436 is a mid-depth coral-red with a softly muted, clay-like character. Its warm red base carries a subtle earthy cast, keeping it from reading as overly pink or brightly orange. In bright daylight, Lost Coral appears clearer and more sun-baked, while lower or warmer light can bring out its deeper terracotta side. It has enough presence for a full dining room or hallway, but is especially effective on a painted door, kitchen island, or built-in cabinetry. Pair it with warm off-whites, natural oak, aged brass, and muted olive or dusty blue accents for a grounded palette.
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What are Dulux Lost Coral undertones?
Lost Coral is a midtone, clear earthy red. The HEX sample leans red; this describes its measurable digital hue direction, not a hidden paint pigment. Warm bulbs can make it look creamier or more golden, while cool daylight may mute that warmth and pull it closer to beige or greige.
HEX value:
RGB code:
193, 90, 87
Is Dulux Lost Coral cool or warm?
warm
cool
At 2° on the HSL hue wheel, this dark red sits firmly on the warm side.
10YR 21/436 Lost Coral HSL code: 2, 46%, 55%
Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is expressed as a percentage. At 0%, it appears as a shade of grey, and at 100%, it is in full color.
Lightness is also a percentage value. 0% is black, and 100% is white.
How light temperature affects Lost Coral
Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.
In addition, natural-light temperature depends on its direction:
| Direction of sunlight | Visible temp. | Hue | Duration |
|---|---|---|---|
| North | Cool | Bluish | All day |
| East | Warm | Yellow | Before noon |
| West | Warm | Orange-red | After noon |
| South | Warm | Orange-yellow | All day |
Artificial Lighting. When choosing bulbs, pay attention to their color temperature in Kelvins.
Use the slider to see how this dark red shade looks under different lighting:
4000K
Coordinating colors.
Colors that go with Dulux Lost Coral:
Monochromatic color scheme
This scheme consists of various shades, tints, and tones of a single color. While it offers a perfect combination of hues, without accent décor it may become monotonous.
Lighter shades
10YR 21/436
Lost Coral
Darker shades
10YR 21/436
Lost Coral
Complementary color scheme
This color scheme is a combination of two shades that are opposite each other on the color wheel. The high contrast between these colors creates a vibrant and dynamic visual effect. For the color Lost Coral with a red hue, complementary colors are those with a green hue close to 182, such as Dulux Misty Morning and Denim Drift.
Color codes
We have collected almost every possible color code you could ever need.
Not sure what the difference between HEX and RGB is? We break down color models in plain language. Understanding color models
| Format | Code |
|---|---|
| HEX | #C15A57 |
| RGB Decimal | 193, 90, 87 |
| RGB Percent | 75.69%, 35.29%, 34.12% |
| HSV | Hue: 2° Saturation: 54.92% Value: 75.69% |
| HSL | hsl(2, 46, 55) |
| CMYK | Cyan: 0.0 Magenta: 53.37 Yellow: 54.92 Key: 24.31 |
| YIQ | Y: 120.455 I: 62.342 Q: 20.855 |
| XYZ | X: 27.371 Y: 19.341 Z: 11.306 |
| CIE Lab | L:51.084 a:41.027 b:21.658 |
| CIE Luv | L:51.084 u:75.519 v:17.942 |
| Decimal | 12671575 |
| Hunter Lab | 43.978, 34.13, 15.542 |
Color equivalents
RAL 3017
Rose
RAL Classic
02YR 20/536
Wild Poppy
Dulux
212
Blazer
Farrow and Ball
90RR 21/418
Red Stallion 4
Dulux
Collective Coral
Dulux
90RR 18/450
Raspberry Bellini
Dulux
Coral Flair
Dulux
04YR 18/324
Auburn Embers
Dulux
30YR 25/463
Hot Paprika 5
Dulux
Mahogany Red
Dulux
RAL 3018
Strawberry red
RAL Classic
189
Carmine
Little Greene
10YR 16/407
Thai Magic 1
Dulux
Roasted Red
Dulux
90RR 20/296
Stolen Rose
Dulux
304
Bamboozle
Farrow and Ball
83RR 23/486
Rose Trellis 1
Dulux
RAL 3022
Salmon pink
RAL Classic
