#E24537
Closest named color: Imperial Red (#E63946). oklch(61.5% 0.196 29.1), rgb(226, 69, 55).
Aa
Black text reads best on this color (5.14:1).
About this color
#E24537 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.196 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.027 away. Black text reads best on it, at 5.14:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #E24537 |
| RGB | rgb(226, 69, 55) |
| HSL | hsl(5, 75%, 55%) |
| OKLCH | oklch(61.5% 0.196 29.1) |
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 #E24537 | 4.08:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #E24537 | 5.14:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #E24537 text on white | 4.08:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #E24537 text on black | 5.14:1 | AA | Lc -34.9 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC5
oklch(88.6% 0.054 29.6)
-
Step 300
300
#F8A99D
oklch(80.8% 0.096 28.9)
-
Step 400
400
#F17767
oklch(70.8% 0.153 29.1)
-
Step 500
500 (this color)
#E24537
oklch(61.5% 0.196 29.1)
-
Step 600
600
#D31F16
oklch(55.5% 0.212 29.2)
-
Step 700
700
#B70806
oklch(49.2% 0.198 29.1)
-
Step 800
800
#94120C
oklch(42.7% 0.164 29.1)
-
Step 900
900
#771B14
oklch(37.7% 0.128 29)
-
Step 950
950
#46120D
oklch(27% 0.081 29)
#E24537 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) | #736834 | 0.208 |
| Deuteranopia (no green cones) | #9A8A31 | 0.189 |
| Tritanopia (no blue cones) | #F90543 | 0.064 |
| Achromatopsia (no color) | #7E7E7E | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E24537
#E24537
oklch(61.5% 0.196 29.1)
- #0095A7
#0095A7
oklch(61.4% 0.106 209.7)
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 #E24537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.027
- Pale Red #D9544D ΔE 0.029
- Tomato Red #EC2D01 ΔE 0.035
- Faded Red #D3494E ΔE 0.036
- Deep Orange #DC4D01 ΔE 0.038
- Pastel Red #DB5856 ΔE 0.038
- Vermillion #F4320C ΔE 0.039
- Dark Coral #CF524E ΔE 0.040
Use #E24537 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.