#E1331D
Closest named color: Tomato Red (#EC2D01). oklch(59.4% 0.212 30.9), rgb(225, 51, 29).
Aa
Black text reads best on this color (4.69:1).
About this color
#E1331D is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.212 and its hue 31°. 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 4.69:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.212) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #E1331D |
| RGB | rgb(225, 51, 29) |
| HSL | hsl(7, 77%, 50%) |
| OKLCH | oklch(59.4% 0.212 30.9) |
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 #E1331D | 4.47:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #E1331D | 4.69:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #E1331D text on white | 4.47:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #E1331D text on black | 4.69:1 | AA | Lc -32.3 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FDCCC2
oklch(88.5% 0.058 31.6)
-
Step 300
300
#FCA798
oklch(80.8% 0.104 30.5)
-
Step 400
400
#F6725D
oklch(70.6% 0.166 30.9)
-
Step 500
500 (this color)
#E1331D
oklch(59.4% 0.212 30.9)
-
Step 600
600
#D51B00
oklch(55.6% 0.217 30.9)
-
Step 700
700
#B41500
oklch(49.1% 0.192 30.9)
-
Step 800
800
#950F00
oklch(42.7% 0.167 30.8)
-
Step 900
900
#7B1407
oklch(37.8% 0.139 30.9)
-
Step 950
950
#480F08
oklch(26.9% 0.088 30.6)
#E1331D 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) | #6B5F17 | 0.227 |
| Deuteranopia (no green cones) | #95850E | 0.206 |
| Tritanopia (no blue cones) | #F80031 | 0.052 |
| Achromatopsia (no color) | #777777 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1331D
#E1331D
oklch(59.4% 0.212 30.9)
- #008EA1
#008EA1
oklch(59.3% 0.103 211.2)
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 #E1331D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.022
- Imperial Red #E63946 ΔE 0.037
- Vermillion #F4320C ΔE 0.038
- Red Pantone #EF233C ΔE 0.041
- Deep Orange #DC4D01 ΔE 0.042
- Crimson #DC143C ΔE 0.048
- Cherry Red #F7022A ΔE 0.048
- Faded Red #D3494E ΔE 0.049
Use #E1331D 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.