#E1243C
Closest named color: Crimson (#DC143C). oklch(58.7% 0.219 21.9), rgb(225, 36, 60).
Aa
White text reads best on this color (4.64:1).
About this color
#E1243C is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.219 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.018 away. White text reads best on it, at 4.64:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.219) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.51:1 |
| White text | 4.64:1 |
Values
| HEX | #E1243C |
| RGB | rgb(225, 36, 60) |
| HSL | hsl(352, 76%, 51%) |
| OKLCH | oklch(58.7% 0.219 21.9) |
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 #E1243C | 4.64:1 | AA | Lc -75.8 | Fine for body text |
| Black text on #E1243C | 4.51:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #E1243C text on white | 4.64:1 | AA | Lc 70.3 | Content text, not long reading |
| #E1243C text on black | 4.51:1 | AA | Lc -31.4 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCCC9
oklch(88.6% 0.055 22.4)
-
Step 300
300
#FAA7A4
oklch(80.9% 0.099 21.8)
-
Step 400
400
#F37373
oklch(70.7% 0.158 21.9)
-
Step 500
500
#EA454F
oklch(63.1% 0.201 21.9)
-
Step 600
600 (this color)
#E1243C
oklch(58.7% 0.219 21.9)
-
Step 700
700
#B60028
oklch(49% 0.197 21.7)
-
Step 800
800
#960620
oklch(42.8% 0.169 22)
-
Step 900
900
#78171F
oklch(37.7% 0.131 22.3)
-
Step 950
950
#471013
oklch(27% 0.083 21.8)
#E1243C 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) | #635B3B | 0.241 |
| Deuteranopia (no green cones) | #918235 | 0.219 |
| Tritanopia (no blue cones) | #F80030 | 0.044 |
| Achromatopsia (no color) | #747474 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1243C
#E1243C
oklch(58.7% 0.219 21.9)
- #008E96
#008E96
oklch(58.9% 0.1 201.8)
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 #E1243C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.018
- Imperial Red #E63946 ΔE 0.027
- Red Pantone #EF233C ΔE 0.028
- Lipstick #D5174E ΔE 0.040
- Cherry Red #F7022A ΔE 0.043
- Pink Red #F5054F ΔE 0.046
- Faded Red #D3494E ΔE 0.046
- Tomato Red #EC2D01 ΔE 0.047
Use #E1243C 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.