#E42C20
Closest named color: Tomato Red (#EC2D01). oklch(59.5% 0.219 29.3), rgb(228, 44, 32).
Aa
Black text reads best on this color (4.67:1).
About this color
#E42C20 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.219 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.020 away. Black text reads best on it, at 4.67:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.219) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.67:1 |
| White text | 4.48:1 |
Values
| HEX | #E42C20 |
| RGB | rgb(228, 44, 32) |
| HSL | hsl(4, 78%, 51%) |
| OKLCH | oklch(59.5% 0.219 29.3) |
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 #E42C20 | 4.48:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #E42C20 | 4.67:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #E42C20 text on white | 4.48:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #E42C20 text on black | 4.67:1 | AA | Lc -32.4 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC3
oklch(88.5% 0.059 28.6)
-
Step 300
300
#FEA698
oklch(80.9% 0.107 29.5)
-
Step 400
400
#F9705E
oklch(70.7% 0.171 29.6)
-
Step 500
500 (this color)
#E42C20
oklch(59.5% 0.219 29.3)
-
Step 600
600
#D90100
oklch(55.6% 0.228 29.3)
-
Step 700
700
#B80100
oklch(49.2% 0.201 29.3)
-
Step 800
800
#980100
oklch(42.7% 0.175 29.3)
-
Step 900
900
#7C0F09
oklch(37.7% 0.143 29.2)
-
Step 950
950
#490D08
oklch(26.9% 0.091 29.3)
#E42C20 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) | #695D1B | 0.237 |
| Deuteranopia (no green cones) | #968512 | 0.214 |
| Tritanopia (no blue cones) | #FC002C | 0.049 |
| Achromatopsia (no color) | #777777 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E42C20
#E42C20
oklch(59.5% 0.219 29.3)
- #008FA0
#008FA0
oklch(59.5% 0.103 209.5)
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 #E42C20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.020
- Imperial Red #E63946 ΔE 0.033
- Red Pantone #EF233C ΔE 0.034
- Vermillion #F4320C ΔE 0.036
- Cherry Red #F7022A ΔE 0.040
- Crimson #DC143C ΔE 0.043
- Fire Engine Red #FE0002 ΔE 0.049
- Deep Orange #DC4D01 ΔE 0.051
Use #E42C20 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.