#E03D2D
Closest named color: Tomato Red (#EC2D01). oklch(60.2% 0.202 29.8), rgb(224, 61, 45).
Aa
Black text reads best on this color (4.87:1).
About this color
#E03D2D is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.202 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.028 away. Black text reads best on it, at 4.87:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #E03D2D |
| RGB | rgb(224, 61, 45) |
| HSL | hsl(5, 74%, 53%) |
| OKLCH | oklch(60.2% 0.202 29.8) |
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 #E03D2D | 4.30:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #E03D2D | 4.87:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #E03D2D text on white | 4.30:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #E03D2D text on black | 4.87:1 | AA | Lc -33.3 | 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
#FBCCC4
oklch(88.4% 0.055 29.4)
-
Step 300
300
#FAA89B
oklch(80.8% 0.099 29.3)
-
Step 400
400
#F37563
oklch(70.7% 0.159 29.9)
-
Step 500
500 (this color)
#E03D2D
oklch(60.2% 0.202 29.8)
-
Step 600
600
#D61608
oklch(55.6% 0.22 29.8)
-
Step 700
700
#B70800
oklch(49.2% 0.199 29.7)
-
Step 800
800
#960B03
oklch(42.7% 0.169 29.8)
-
Step 900
900
#781810
oklch(37.6% 0.132 29.5)
-
Step 950
950
#47110B
oklch(27% 0.084 29.8)
#E03D2D 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) | #6E6329 | 0.216 |
| Deuteranopia (no green cones) | #978725 | 0.196 |
| Tritanopia (no blue cones) | #F7003B | 0.058 |
| Achromatopsia (no color) | #7A7A7A | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E03D2D
#E03D2D
oklch(60.2% 0.202 29.8)
- #0091A3
#0091A3
oklch(60.2% 0.104 210.1)
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 #E03D2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.028
- Imperial Red #E63946 ΔE 0.029
- Deep Orange #DC4D01 ΔE 0.038
- Faded Red #D3494E ΔE 0.038
- Vermillion #F4320C ΔE 0.039
- Pale Red #D9544D ΔE 0.040
- Red Pantone #EF233C ΔE 0.041
- Dark Coral #CF524E ΔE 0.045
Use #E03D2D 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.