#E4523F
Closest named color: Pale Red (#D9544D). oklch(63.3% 0.185 30.3), rgb(228, 82, 63).
Aa
Black text reads best on this color (5.57:1).
About this color
#E4523F is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.185 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Pale Red (#D9544D), ΔE 0.024 away. Black text reads best on it, at 5.57:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Pale Red (#D9544D) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #E4523F |
| RGB | rgb(228, 82, 63) |
| HSL | hsl(7, 75%, 57%) |
| OKLCH | oklch(63.3% 0.185 30.3) |
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 #E4523F | 3.76:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #E4523F | 5.57:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #E4523F text on white | 3.76:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #E4523F text on black | 5.57:1 | AA | Lc -37.5 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F9CEC6
oklch(88.6% 0.05 30.4)
-
Step 300
300
#F5AB9E
oklch(80.9% 0.09 30.2)
-
Step 400
400
#ED7A68
oklch(70.7% 0.145 30.3)
-
Step 500
500 (this color)
#E4523F
oklch(63.3% 0.185 30.3)
-
Step 600
600
#CF2C1A
oklch(55.7% 0.201 30.5)
-
Step 700
700
#B21B0B
oklch(49% 0.186 30.4)
-
Step 800
800
#911B0F
oklch(42.7% 0.155 30.2)
-
Step 900
900
#741F15
oklch(37.6% 0.12 30.2)
-
Step 950
950
#45140E
oklch(27.1% 0.077 29.9)
#E4523F 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) | #7B6F3C | 0.193 |
| Deuteranopia (no green cones) | #9F8F3A | 0.177 |
| Tritanopia (no blue cones) | #FA2C4E | 0.064 |
| Achromatopsia (no color) | #848484 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4523F
#E4523F
oklch(63.3% 0.185 30.3)
- #009BAF
#009BAF
oklch(63.2% 0.11 210.8)
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 #E4523F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Red #D9544D ΔE 0.024
- Pastel Red #DB5856 ΔE 0.028
- Deep Orange #DC4D01 ΔE 0.040
- Imperial Red #E63946 ΔE 0.042
- Dark Coral #CF524E ΔE 0.043
- Orangey Red #FA4224 ΔE 0.043
- Faded Red #D3494E ΔE 0.045
- Vermillion #F4320C ΔE 0.047
Use #E4523F 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.