#E42530
Closest named color: Red Pantone (#EF233C). oklch(59.2% 0.222 25.2), rgb(228, 37, 48).
Aa
Black text reads best on this color (4.60:1).
About this color
#E42530 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.222 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Red Pantone (#EF233C), ΔE 0.025 away. Black text reads best on it, at 4.60:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.222) |
| Temperature | warm |
| Nearest name | Red Pantone (#EF233C) |
| Black text | 4.60:1 |
| White text | 4.55:1 |
Values
| HEX | #E42530 |
| RGB | rgb(228, 37, 48) |
| HSL | hsl(357, 78%, 52%) |
| OKLCH | oklch(59.2% 0.222 25.2) |
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 #E42530 | 4.55:1 | AA | Lc -75.2 | Fine for body text |
| Black text on #E42530 | 4.60:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #E42530 text on white | 4.55:1 | AA | Lc 69.7 | Content text, not long reading |
| #E42530 text on black | 4.60:1 | AA | Lc -32.0 | 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
#FCCCC7
oklch(88.6% 0.055 25.2)
-
Step 300
300
#FBA7A0
oklch(80.9% 0.101 24.8)
-
Step 400
400
#F4736C
oklch(70.7% 0.16 25.1)
-
Step 500
500
#EB4444
oklch(63% 0.204 25.2)
-
Step 600
600 (this color)
#E42530
oklch(59.2% 0.222 25.2)
-
Step 700
700
#B7001B
oklch(49.1% 0.199 25.2)
-
Step 800
800
#970416
oklch(42.8% 0.171 25.2)
-
Step 900
900
#791619
oklch(37.7% 0.133 25.1)
-
Step 950
950
#47100F
oklch(26.9% 0.084 25.7)
#E42530 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) | #665C2E | 0.242 |
| Deuteranopia (no green cones) | #948427 | 0.220 |
| Tritanopia (no blue cones) | #FB002C | 0.043 |
| Achromatopsia (no color) | #767676 | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E42530
#E42530
oklch(59.2% 0.222 25.2)
- #008F9B
#008F9B
oklch(59.3% 0.101 205.2)
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 #E42530, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Pantone #EF233C ΔE 0.025
- Imperial Red #E63946 ΔE 0.027
- Crimson #DC143C ΔE 0.029
- Tomato Red #EC2D01 ΔE 0.033
- Cherry Red #F7022A ΔE 0.036
- Vermillion #F4320C ΔE 0.045
- Faded Red #D3494E ΔE 0.050
- Pink Red #F5054F ΔE 0.050
Use #E42530 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.