#E03643
Closest named color: Imperial Red (#E63946). oklch(59.9% 0.205 22.3), rgb(224, 54, 67).
Aa
Black text reads best on this color (4.77:1).
About this color
#E03643 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.205 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.014 away. Black text reads best on it, at 4.77:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #E03643 |
| RGB | rgb(224, 54, 67) |
| HSL | hsl(355, 73%, 55%) |
| OKLCH | oklch(59.9% 0.205 22.3) |
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 #E03643 | 4.39:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #E03643 | 4.77:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #E03643 text on white | 4.39:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #E03643 text on black | 4.77:1 | AA | Lc -32.7 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCBC8
oklch(88.4% 0.056 22.4)
-
Step 300
300
#FBA7A3
oklch(80.9% 0.1 22.5)
-
Step 400
400
#F47272
oklch(70.7% 0.16 22)
-
Step 500
500 (this color)
#E03643
oklch(59.9% 0.205 22.3)
-
Step 600
600
#D7032F
oklch(55.6% 0.223 22.4)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#97011E
oklch(42.7% 0.172 22.3)
-
Step 900
900
#79151E
oklch(37.7% 0.134 22.3)
-
Step 950
950
#470F12
oklch(26.9% 0.085 22.1)
#E03643 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) | #696142 | 0.224 |
| Deuteranopia (no green cones) | #93853D | 0.205 |
| Tritanopia (no blue cones) | #F6003D | 0.046 |
| Achromatopsia (no color) | #787878 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E03643
#E03643
oklch(59.9% 0.205 22.3)
- #00919A
#00919A
oklch(59.8% 0.102 202.5)
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 #E03643, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.014
- Red Pantone #EF233C ΔE 0.029
- Faded Red #D3494E ΔE 0.032
- Crimson #DC143C ΔE 0.034
- Pale Red #D9544D ΔE 0.044
- Tomato Red #EC2D01 ΔE 0.045
- Dark Coral #CF524E ΔE 0.046
- Cherry Red #F7022A ΔE 0.048
Use #E03643 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.