#E13B1D
Closest named color: Tomato Red (#EC2D01). oklch(60.1% 0.207 32.4), rgb(225, 59, 29).
Aa
Black text reads best on this color (4.84:1).
About this color
#E13B1D is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.207 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.023 away. Black text reads best on it, at 4.84:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #E13B1D |
| RGB | rgb(225, 59, 29) |
| HSL | hsl(9, 77%, 50%) |
| OKLCH | oklch(60.1% 0.207 32.4) |
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 #E13B1D | 4.33:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #E13B1D | 4.84:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #E13B1D text on white | 4.33:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #E13B1D text on black | 4.84:1 | AA | Lc -33.1 | 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
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCCC2
oklch(88.4% 0.056 31.8)
-
Step 300
300
#FBA897
oklch(80.8% 0.102 32.1)
-
Step 400
400
#F4755C
oklch(70.7% 0.161 32.7)
-
Step 500
500 (this color)
#E13B1D
oklch(60.1% 0.207 32.4)
-
Step 600
600
#D12700
oklch(55.6% 0.208 32.5)
-
Step 700
700
#B11F00
oklch(49.1% 0.184 32.4)
-
Step 800
800
#931800
oklch(42.8% 0.16 32.4)
-
Step 900
900
#791705
oklch(37.6% 0.135 32.4)
-
Step 950
950
#471107
oklch(27% 0.084 32.9)
#E13B1D 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) | #6F6216 | 0.218 |
| Deuteranopia (no green cones) | #97870F | 0.199 |
| Tritanopia (no blue cones) | #F80036 | 0.060 |
| Achromatopsia (no color) | #797979 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E13B1D
#E13B1D
oklch(60.1% 0.207 32.4)
- #0090A5
#0090A5
oklch(60% 0.105 212.6)
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 #E13B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.023
- Deep Orange #DC4D01 ΔE 0.033
- Vermillion #F4320C ΔE 0.035
- Imperial Red #E63946 ΔE 0.038
- Red Pantone #EF233C ΔE 0.046
- Pale Red #D9544D ΔE 0.047
- Faded Red #D3494E ΔE 0.048
- Orangey Red #FA4224 ΔE 0.052
Use #E13B1D 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.