#E1311E
Closest named color: Tomato Red (#EC2D01). oklch(59.3% 0.214 30.4), rgb(225, 49, 30).
Aa
Black text reads best on this color (4.65:1).
About this color
#E1311E is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.214 and its hue 30°. 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 4.65:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.65:1 |
| White text | 4.50:1 |
Values
| HEX | #E1311E |
| RGB | rgb(225, 49, 30) |
| HSL | hsl(6, 76%, 50%) |
| OKLCH | oklch(59.3% 0.214 30.4) |
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 #E1311E | 4.50:1 | AA | Lc -75.1 | Fine for body text |
| Black text on #E1311E | 4.65:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #E1311E text on white | 4.50:1 | AA | Lc 69.6 | Content text, not long reading |
| #E1311E text on black | 4.65:1 | AA | Lc -32.1 | 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 600.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F8A99B
oklch(80.8% 0.096 30.4)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500
#E84B38
oklch(63.1% 0.197 30.3)
-
Step 600
600 (this color)
#E1311E
oklch(59.3% 0.214 30.4)
-
Step 700
700
#B51000
oklch(49% 0.195 30.4)
-
Step 800
800
#941205
oklch(42.6% 0.164 30.4)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#E1311E 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) | #6A5E18 | 0.229 |
| Deuteranopia (no green cones) | #958410 | 0.206 |
| Tritanopia (no blue cones) | #F8002F | 0.050 |
| Achromatopsia (no color) | #777777 | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1311E
#E1311E
oklch(59.3% 0.214 30.4)
- #008EA0
#008EA0
oklch(59.3% 0.103 210.4)
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 #E1311E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.023
- Imperial Red #E63946 ΔE 0.036
- Vermillion #F4320C ΔE 0.039
- Red Pantone #EF233C ΔE 0.040
- Deep Orange #DC4D01 ΔE 0.045
- Crimson #DC143C ΔE 0.046
- Cherry Red #F7022A ΔE 0.047
- Faded Red #D3494E ΔE 0.049
Use #E1311E 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.