#DE3749
Closest named color: Imperial Red (#E63946). oklch(59.7% 0.202 20.4), rgb(222, 55, 73).
Aa
Black text reads best on this color (4.74:1).
About this color
#DE3749 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.202 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.017 away. Black text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 4.74:1 |
| White text | 4.42:1 |
Values
| HEX | #DE3749 |
| RGB | rgb(222, 55, 73) |
| HSL | hsl(354, 72%, 54%) |
| OKLCH | oklch(59.7% 0.202 20.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #DE3749 | 4.42:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #DE3749 | 4.74:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #DE3749 text on white | 4.42:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #DE3749 text on black | 4.74:1 | AA | Lc -32.4 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBCA
oklch(88.4% 0.056 19.6)
-
Step 300
300
#FAA7A6
oklch(80.9% 0.099 20.2)
-
Step 400
400
#F37376
oklch(70.7% 0.158 20.5)
-
Step 500
500 (this color)
#DE3749
oklch(59.7% 0.202 20.4)
-
Step 600
600
#D60B37
oklch(55.7% 0.22 20.5)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#960424
oklch(42.7% 0.169 20.3)
-
Step 900
900
#781622
oklch(37.7% 0.131 20.3)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#DE3749 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #686148 | 0.221 |
| Deuteranopia (no green cones) | #928544 | 0.203 |
| Tritanopia (no blue cones) | #F4003F | 0.046 |
| Achromatopsia (no color) | #787878 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DE3749
#DE3749
oklch(59.7% 0.202 20.4)
- #009198
#009198
oklch(59.7% 0.102 200.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #DE3749, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.017
- Faded Red #D3494E ΔE 0.029
- Crimson #DC143C ΔE 0.033
- Red Pantone #EF233C ΔE 0.034
- Lipstick #D5174E ΔE 0.044
- Pale Red #D9544D ΔE 0.045
- Dark Coral #CF524E ΔE 0.045
- Pink Red #F5054F ΔE 0.050
Use #DE3749 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.