Palettes / Colors / #EF372A
#EF372A — Vivid Red
#EF372A is a red color we call Vivid Red, closest to the named color Crimson (#DC143C). It belongs to the red family.
Color name
Closest CSS keyword: crimson (#DC143C) — not an exact match. CSS crimson gives you #DC143C, a different color; use #EF372A 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.
#EF372A 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 #2AE2EF; it also sits naturally between #EF2A7F and #EF992A. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #EF372A |
|---|---|
| RGB | 239, 55, 42 |
| HSL | 4°, 86%, 55% |
| HSV | 4°, 82%, 94% |
| CMYK | 0%, 77%, 82%, 6% |
| XYZ | 37.38, 21.25, 4.32 |
| Yxy | 21.25, 0.5938, 0.3376 |
| CIE-Lab | 53.22, 67.96, 51.12 |
| Hunter Lab | 46.10, 67.59, 25.13 |
RGB & CMYK percentages
Red 94% · Green 22% · Blue 16%
Cyan 0% · Magenta 77% · Yellow 82% · Key 6%
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 #EF372A
.text { color: #EF372A; }
.background { background-color: #EF372A; }
.border { border: 3px solid #EF372A; }
.text-rgb { color: rgb(239, 55, 42); }
.text-hsl { color: hsl(4, 86%, 55%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EF372A; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 55, 42, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EF372A; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 55, 42, 0.8); }
HTML: <p style="color:#EF372A">Text here</p> · <div style="background-color:#EF372A">Div content here</div>
Shades of #EF372A
Tints of #EF372A
Tones of #EF372A
Color harmonies
Complementary — #2AE2EF:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.00:1 AA large only |
|---|---|
| Against black text | 5.25:1 AA |
Best text color on #EF372A: #000000.
Semi-transparent (opacity) text on #EF372A
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 #EF372A: ·
How #EF372A 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 #EF372A 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 #EF372A?
#EF372A is Vivid Red, a red color (RGB 239, 55, 42). Its closest standard named color is Crimson.
What is the RGB and HSL of #EF372A?
#EF372A is RGB 239, 55, 42 — HSL 4°, 86%, 55% — CMYK 0%, 77%, 82%, 6%.
What colors go with #EF372A?
Its complement is #2AE2EF; analogous partners are #EF2A7F and #EF992A. It also appears in 6+ palettes in our collection.
Can I use #EF372A for text?
Black text on #EF372A has a contrast ratio of 5.25:1 (passes WCAG AA); white text gives 4.00:1.