#E01E3E
Closest named color: Crimson (#DC143C). oklch(58.3% 0.221 20.6), rgb(224, 30, 62).
Aa
White text reads best on this color (4.74:1).
About this color
#E01E3E is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.221 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.012 away. White text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #E01E3E |
| RGB | rgb(224, 30, 62) |
| HSL | hsl(350, 76%, 50%) |
| OKLCH | oklch(58.3% 0.221 20.6) |
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 #E01E3E | 4.74:1 | AA | Lc -76.3 | Fine for body text |
| Black text on #E01E3E | 4.42:1 | AA large text | Lc 33.2 | Non-text elements, placeholder text |
| #E01E3E text on white | 4.74:1 | AA | Lc 70.8 | Content text, not long reading |
| #E01E3E text on black | 4.42:1 | AA large text | Lc -30.8 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBCA
oklch(88.4% 0.056 19.6)
-
Step 300
300
#FAA7A5
oklch(80.9% 0.099 21)
-
Step 400
400
#F37275
oklch(70.6% 0.159 20.6)
-
Step 500
500
#EB4352
oklch(63.1% 0.204 20.5)
-
Step 600
600 (this color)
#E01E3E
oklch(58.3% 0.221 20.6)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#960323
oklch(42.7% 0.17 20.6)
-
Step 900
900
#791521
oklch(37.8% 0.133 20.7)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#E01E3E 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) | #60593D | 0.245 |
| Deuteranopia (no green cones) | #8F8137 | 0.223 |
| Tritanopia (no blue cones) | #F7002E | 0.045 |
| Achromatopsia (no color) | #737373 | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E01E3E
#E01E3E
oklch(58.3% 0.221 20.6)
- #008C93
#008C93
oklch(58.2% 0.099 201)
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 #E01E3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.012
- Red Pantone #EF233C ΔE 0.032
- Imperial Red #E63946 ΔE 0.033
- Lipstick #D5174E ΔE 0.034
- Cherry #CF0234 ΔE 0.042
- Pink Red #F5054F ΔE 0.045
- Cherry Red #F7022A ΔE 0.046
- Faded Red #D3494E ΔE 0.050
Use #E01E3E 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.