Orange color · XKCD survey name
Rust Orange Color Code: #C45508
The HEX code for Rust Orange is #C45508. It is a medium-dark, vivid orange color made of 196 red, 85 green and 8 blue (HSL 25°, 92%, 40%). Black text reads best on it (4.65:1 contrast).
Rust Orange color values
#C45508
rgb(196, 85, 8)
hsl(25, 92%, 40%)
25, 96%, 77%
hwb(25 3% 23%)
0%, 57%, 96%, 23%
12866824
CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.
What is Rust Orange?
“Rust Orange” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.
Its hue angle of 25° places it in the orange part of the color wheel, with 92% saturation (vivid) and 40% lightness (medium-dark). It is a warm color.
Compared with the other orange colors in the Aqeeb Studio library, it is lighter than 7% of them and more saturated than 21% of them.
Its relative luminance is 0.182, which makes it a mid-tone color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.
Rust Orange counts as a light color: its HSL lightness is 40% and its relative luminance is 0.182. Black text reads best on it (4.65:1 contrast).
Text contrast on Rust Orange
| Text | Preview | Ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|---|
| White text | Sample text | 4.51:1 Good | Pass | Pass | Fail | Pass |
| Black text | Sample text | 4.65:1 Good | Pass | Pass | Fail | Pass |
Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.
Colors that go with Rust Orange
Complementary color
Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.
Analogous colors
Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.
Triadic colors
A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.
Split-complementary colors
Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.
Tetradic colors
A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.
Monochromatic variants
Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.
A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.
Tints and shades of Rust Orange
Lighter tints (mixed with white)
Darker shades (mixed with black)
Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.
Similar colors
Where to use Rust Orange
- Button, banner and badge backgrounds with white text (4.51:1 contrast)
- Accents that need to stand out: call-to-action buttons, charts and illustrations
- Warnings and attention highlights
- Energetic call-to-action buttons
- Autumn and food-related designs
- Illustration and icon accents
Use Rust Orange in CSS
:root {
--color-rust-orange: #C45508;
}
.element {
color: var(--color-rust-orange);
background-color: #C45508;
border: 2px solid #C45508;
}
Questions about Rust Orange
What is the HEX code for Rust Orange?
Rust Orange is #C45508.
What is the RGB value of Rust Orange?
The RGB value of Rust Orange is 196, 85, 8: 196 red, 85 green and 8 blue on a 0–255 scale, written rgb(196, 85, 8) in CSS.
What is the HSL value of Rust Orange?
The HSL value of Rust Orange is 25°, 92%, 40% (hue, saturation, lightness), written hsl(25, 92%, 40%) in CSS.
What is the CMYK value of Rust Orange?
A standard conversion gives about C 0%, M 57%, Y 96%, K 23%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.
Is Rust Orange a light or dark color?
Rust Orange counts as a light color: its HSL lightness is 40% and its relative luminance is 0.182. Black text reads best on it (4.65:1 contrast).
How does Rust Orange look with white text?
White text on Rust Orange has a contrast ratio of 4.51:1, rated Good. It meets WCAG AA for normal text.
How does Rust Orange look with black text?
Black text on Rust Orange has a contrast ratio of 4.65:1, rated Good. It meets WCAG AA for normal text.
What colors go well with Rust Orange?
Cerulean is its complementary color, and Scarlet sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.
Where can Rust Orange be used?
It suits button, banner and badge backgrounds with white text (4.51:1 contrast); accents that need to stand out: call-to-action buttons, charts and illustrations; warnings and attention highlights.
How do I use Rust Orange in CSS?
Use color: #C45508; for text, background-color: #C45508; for fills, or define a custom property such as --color-rust-orange: #C45508; and reuse it with var(--color-rust-orange).
About this color page
Crowd-sourced name from the XKCD Color Survey (CC0). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.