Palettes / Colors / #CD181C
#CD181C — Vivid Red
#CD181C is a red color we call Vivid Red, closest to the named color FireBrick (#B22222). It belongs to the red family.
Color name
Closest CSS keyword: firebrick (#B22222) — not an exact match. CSS firebrick gives you #B22222, a different color; use #CD181C when you need this exact shade.
Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.
#CD181C is a warm red color associated with energy, passion and urgency. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.
Its strongest partner is its complement #18CDCA; it also sits naturally between #CD1876 and #CD7018. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #CD181C |
|---|---|
| RGB | 205, 24, 28 |
| HSL | 359°, 79%, 45% |
| HSV | 359°, 88%, 80% |
| CMYK | 0%, 88%, 86%, 20% |
| XYZ | 25.71, 13.72, 2.39 |
| Yxy | 13.72, 0.6148, 0.3280 |
| CIE-Lab | 43.82, 65.52, 47.14 |
| Hunter Lab | 37.04, 62.07, 20.85 |
RGB & CMYK percentages
Red 80% · Green 9% · Blue 11%
Cyan 0% · Magenta 88% · Yellow 86% · Key 20%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
CSS code for #CD181C
.text { color: #CD181C; }
.background { background-color: #CD181C; }
.border { border: 3px solid #CD181C; }
.text-rgb { color: rgb(205, 24, 28); }
.text-hsl { color: hsl(359, 79%, 45%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #CD181C; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(205, 24, 28, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #CD181C; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(205, 24, 28, 0.8); }
HTML: <p style="color:#CD181C">Text here</p> · <div style="background-color:#CD181C">Div content here</div>
Shades of #CD181C
Tints of #CD181C
Tones of #CD181C
Color harmonies
Complementary — #18CDCA:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 5.61:1 AA |
|---|---|
| Against black text | 3.74:1 AA large only |
Best text color on #CD181C: #FFFFFF.
Semi-transparent (opacity) text on #CD181C
Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:
Smaller body text shows the effect best.
Blended color: · Contrast against #CD181C: ·
How #CD181C looks with color blindness
Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:
Closest design-system colors
The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:
Palettes with a similar color
These palettes use a close neighbour of #CD181C rather than the exact color:
Similar colors
The closest colors that actually appear in our palette collection — click any to open its page:
Browse neighbouring colors
Frequently asked questions
What color is #CD181C?
#CD181C is Vivid Red, a red color (RGB 205, 24, 28). Its closest standard named color is FireBrick.
What is the RGB and HSL of #CD181C?
#CD181C is RGB 205, 24, 28 — HSL 359°, 79%, 45% — CMYK 0%, 88%, 86%, 20%.
What colors go with #CD181C?
Its complement is #18CDCA; analogous partners are #CD1876 and #CD7018. It also appears in 6+ palettes in our collection.
Can I use #CD181C for text?
White text on #CD181C has a contrast ratio of 5.61:1 (passes WCAG AA); black text gives 3.74:1.