#E4232B
Closest named color: Red Pantone (#EF233C). oklch(59% 0.223 26.1), rgb(228, 35, 43).
Aa
White text reads best on this color (4.59:1).
About this color
#E4232B is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.223 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Red Pantone (#EF233C), ΔE 0.027 away. White text reads best on it, at 4.59:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.223) |
| Temperature | warm |
| Nearest name | Red Pantone (#EF233C) |
| Black text | 4.57:1 |
| White text | 4.59:1 |
Values
| HEX | #E4232B |
| RGB | rgb(228, 35, 43) |
| HSL | hsl(358, 78%, 52%) |
| OKLCH | oklch(59% 0.223 26.1) |
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 #E4232B | 4.59:1 | AA | Lc -75.3 | Fine for body text |
| Black text on #E4232B | 4.57:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #E4232B text on white | 4.59:1 | AA | Lc 69.8 | Content text, not long reading |
| #E4232B text on black | 4.57:1 | AA | Lc -31.8 | 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 600.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC6
oklch(88.5% 0.055 26.5)
-
Step 300
300
#FBA79F
oklch(80.9% 0.101 25.5)
-
Step 400
400
#F4736A
oklch(70.6% 0.16 26)
-
Step 500
500
#EC4441
oklch(63.1% 0.205 26.1)
-
Step 600
600 (this color)
#E4232B
oklch(59% 0.223 26.1)
-
Step 700
700
#B70017
oklch(49.1% 0.199 26.1)
-
Step 800
800
#970312
oklch(42.7% 0.172 26.1)
-
Step 900
900
#791617
oklch(37.7% 0.133 26)
-
Step 950
950
#47100E
oklch(26.9% 0.084 26.6)
#E4232B 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) | #655B28 | 0.245 |
| Deuteranopia (no green cones) | #938421 | 0.222 |
| Tritanopia (no blue cones) | #FB0029 | 0.043 |
| Achromatopsia (no color) | #757575 | 0.225 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4232B
#E4232B
oklch(59% 0.223 26.1)
- #008E9B
#008E9B
oklch(59.1% 0.101 206.2)
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 #E4232B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Pantone #EF233C ΔE 0.027
- Imperial Red #E63946 ΔE 0.030
- Crimson #DC143C ΔE 0.030
- Tomato Red #EC2D01 ΔE 0.031
- Cherry Red #F7022A ΔE 0.036
- Vermillion #F4320C ΔE 0.044
- Fire Engine Red #FE0002 ΔE 0.051
- Bright Red #FF000D ΔE 0.052
Use #E4232B 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.