#E42D33
Closest named color: Imperial Red (#E63946). oklch(59.7% 0.217 25.5), rgb(228, 45, 51).
Aa
Black text reads best on this color (4.72:1).
About this color
#E42D33 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.217 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.021 away. Black text reads best on it, at 4.72:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.217) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #E42D33 |
| RGB | rgb(228, 45, 51) |
| HSL | hsl(358, 77%, 54%) |
| OKLCH | oklch(59.7% 0.217 25.5) |
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 #E42D33 | 4.44:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #E42D33 | 4.72:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #E42D33 text on white | 4.44:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #E42D33 text on black | 4.72:1 | AA | Lc -32.6 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE3DF
oklch(93.7% 0.03 27.8)
-
Step 200
200
#FECBC5
oklch(88.5% 0.059 26.1)
-
Step 300
300
#FEA69D
oklch(81% 0.106 26)
-
Step 400
400
#F86F68
oklch(70.6% 0.17 25.3)
-
Step 500
500 (this color)
#E42D33
oklch(59.7% 0.217 25.5)
-
Step 600
600
#D80020
oklch(55.6% 0.226 25.6)
-
Step 700
700
#B7001A
oklch(49.1% 0.199 25.4)
-
Step 800
800
#980013
oklch(42.8% 0.174 25.6)
-
Step 900
900
#7C0F14
oklch(37.8% 0.142 25.7)
-
Step 950
950
#490D0D
oklch(27% 0.09 25.6)
#E42D33 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) | #685E31 | 0.236 |
| Deuteranopia (no green cones) | #95862B | 0.216 |
| Tritanopia (no blue cones) | #FB0032 | 0.044 |
| Achromatopsia (no color) | #777777 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E42D33
#E42D33
oklch(59.7% 0.217 25.5)
- #00909D
#00909D
oklch(59.7% 0.102 206)
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 #E42D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.021
- Red Pantone #EF233C ΔE 0.024
- Tomato Red #EC2D01 ΔE 0.031
- Crimson #DC143C ΔE 0.034
- Cherry Red #F7022A ΔE 0.037
- Vermillion #F4320C ΔE 0.042
- Faded Red #D3494E ΔE 0.045
- Strawberry #FB2943 ΔE 0.048
Use #E42D33 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.