#E03A57
Closest named color: Imperial Red (#E63946). oklch(60.6% 0.201 16.1), rgb(224, 58, 87).
Aa
Black text reads best on this color (4.91:1).
About this color
#E03A57 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.201 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.024 away. Black text reads best on it, at 4.91:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #E03A57 |
| RGB | rgb(224, 58, 87) |
| HSL | hsl(350, 73%, 55%) |
| OKLCH | oklch(60.6% 0.201 16.1) |
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 #E03A57 | 4.27:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #E03A57 | 4.91:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #E03A57 text on white | 4.27:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #E03A57 text on black | 4.91:1 | AA | Lc -33.5 | 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
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FBCBCD
oklch(88.4% 0.055 15.4)
-
Step 300
300
#F9A7AB
oklch(80.9% 0.097 16.2)
-
Step 400
400
#F2727E
oklch(70.6% 0.158 16.2)
-
Step 500
500 (this color)
#E03A57
oklch(60.6% 0.201 16.1)
-
Step 600
600
#D40B45
oklch(55.5% 0.218 16)
-
Step 700
700
#B50038
oklch(49.1% 0.196 16.1)
-
Step 800
800
#95042D
oklch(42.7% 0.168 16.3)
-
Step 900
900
#781629
oklch(37.8% 0.131 16)
-
Step 950
950
#471018
oklch(27.1% 0.083 16.4)
#E03A57 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) | #686457 | 0.223 |
| Deuteranopia (no green cones) | #928752 | 0.205 |
| Tritanopia (no blue cones) | #F50046 | 0.047 |
| Achromatopsia (no color) | #7A7A7A | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E03A57
#E03A57
oklch(60.6% 0.201 16.1)
- #009596
#009596
oklch(60.7% 0.103 195.6)
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 #E03A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.024
- Faded Red #D3494E ΔE 0.035
- Red Pantone #EF233C ΔE 0.039
- Crimson #DC143C ΔE 0.043
- Paradise Pink #EF476F ΔE 0.045
- Pink Red #F5054F ΔE 0.046
- Lipstick #D5174E ΔE 0.046
- Dark Pink #CB416B ΔE 0.048
Use #E03A57 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.