#E43D2E
Closest named color: Tomato Red (#EC2D01). oklch(60.9% 0.206 29.5), rgb(228, 61, 46).
Aa
Black text reads best on this color (5.00:1).
About this color
#E43D2E is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.206 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.025 away. Black text reads best on it, at 5.00:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.206) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #E43D2E |
| RGB | rgb(228, 61, 46) |
| HSL | hsl(5, 77%, 54%) |
| OKLCH | oklch(60.9% 0.206 29.5) |
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 #E43D2E | 4.19:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #E43D2E | 5.00:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #E43D2E text on white | 4.19:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #E43D2E text on black | 5.00:1 | AA | Lc -34.2 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC4
oklch(88.5% 0.056 29.2)
-
Step 300
300
#FBA89B
oklch(80.9% 0.101 29.2)
-
Step 400
400
#F47463
oklch(70.7% 0.161 29.4)
-
Step 500
500 (this color)
#E43D2E
oklch(60.9% 0.206 29.5)
-
Step 600
600
#D70D04
oklch(55.5% 0.224 29.5)
-
Step 700
700
#B70400
oklch(49.1% 0.2 29.5)
-
Step 800
800
#970502
oklch(42.7% 0.172 29.4)
-
Step 900
900
#79170F
oklch(37.7% 0.134 29.5)
-
Step 950
950
#47100B
oklch(26.9% 0.085 29.1)
#E43D2E 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) | #70642A | 0.219 |
| Deuteranopia (no green cones) | #998926 | 0.200 |
| Tritanopia (no blue cones) | #FB003B | 0.057 |
| Achromatopsia (no color) | #7C7C7C | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E43D2E
#E43D2E
oklch(60.9% 0.206 29.5)
- #0094A5
#0094A5
oklch(61% 0.105 209)
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 #E43D2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.025
- Imperial Red #E63946 ΔE 0.026
- Vermillion #F4320C ΔE 0.032
- Red Pantone #EF233C ΔE 0.037
- Deep Orange #DC4D01 ΔE 0.040
- Pale Red #D9544D ΔE 0.040
- Faded Red #D3494E ΔE 0.042
- Orangey Red #FA4224 ΔE 0.046
Use #E43D2E 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.