#E13A09
Closest named color: Tomato Red (#EC2D01). oklch(59.9% 0.209 34.4), rgb(225, 58, 9).
Aa
Black text reads best on this color (4.81:1).
About this color
#E13A09 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.209 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.022 away. Black text reads best on it, at 4.81:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.209) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #E13A09 |
| RGB | rgb(225, 58, 9) |
| HSL | hsl(14, 92%, 46%) |
| OKLCH | oklch(59.9% 0.209 34.4) |
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 #E13A09 | 4.36:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #E13A09 | 4.81:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #E13A09 text on white | 4.36:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #E13A09 text on black | 4.81:1 | AA | Lc -33.0 | 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 500.
-
Step 50
50
#FEF2EF
oklch(97% 0.014 34.3)
-
Step 100
100
#FDE3DD
oklch(93.5% 0.03 33.1)
-
Step 200
200
#FCCCC1
oklch(88.4% 0.057 33.1)
-
Step 300
300
#FBA994
oklch(81% 0.102 35)
-
Step 400
400
#F57557
oklch(70.8% 0.164 34.5)
-
Step 500
500 (this color)
#E13A09
oklch(59.9% 0.209 34.4)
-
Step 600
600
#CD3100
oklch(55.6% 0.198 34.4)
-
Step 700
700
#AE2800
oklch(49.2% 0.175 34.4)
-
Step 800
800
#8F1F00
oklch(42.6% 0.152 34.4)
-
Step 900
900
#791900
oklch(37.8% 0.134 34.5)
-
Step 950
950
#481105
oklch(27.1% 0.086 34.3)
#E13A09 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) | #6F6100 | 0.219 |
| Deuteranopia (no green cones) | #988600 | 0.196 |
| Tritanopia (no blue cones) | #F80033 | 0.063 |
| Achromatopsia (no color) | #797979 | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E13A09
#E13A09
oklch(59.9% 0.209 34.4)
- #008FA7
#008FA7
oklch(59.8% 0.106 215.1)
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 #E13A09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.022
- Deep Orange #DC4D01 ΔE 0.030
- Vermillion #F4320C ΔE 0.036
- Imperial Red #E63946 ΔE 0.046
- Red Pantone #EF233C ΔE 0.052
- Pale Red #D9544D ΔE 0.053
- Orangey Red #FA4224 ΔE 0.054
- Faded Red #D3494E ΔE 0.054
Use #E13A09 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.