#E01C45
Closest named color: Crimson (#DC143C). oklch(58.3% 0.222 18.3), rgb(224, 28, 69).
Aa
White text reads best on this color (4.74:1).
About this color
#E01C45 is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.222 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.014 away. White text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.222) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #E01C45 |
| RGB | rgb(224, 28, 69) |
| HSL | hsl(347, 78%, 49%) |
| OKLCH | oklch(58.3% 0.222 18.3) |
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 #E01C45 | 4.74:1 | AA | Lc -76.3 | Fine for body text |
| Black text on #E01C45 | 4.42:1 | AA large text | Lc 33.3 | Non-text elements, placeholder text |
| #E01C45 text on white | 4.74:1 | AA | Lc 70.8 | Content text, not long reading |
| #E01C45 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
#FCCBCB
oklch(88.5% 0.056 18.3)
-
Step 300
300
#FAA6A8
oklch(80.8% 0.1 17.9)
-
Step 400
400
#F3727A
oklch(70.7% 0.159 18.2)
-
Step 500
500
#EB4258
oklch(63.2% 0.204 18.3)
-
Step 600
600 (this color)
#E01C45
oklch(58.3% 0.222 18.3)
-
Step 700
700
#B60032
oklch(49.2% 0.197 18.4)
-
Step 800
800
#960128
oklch(42.7% 0.171 18.4)
-
Step 900
900
#781525
oklch(37.6% 0.132 18.2)
-
Step 950
950
#470F16
oklch(27% 0.084 18)
#E01C45 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) | #5F5945 | 0.246 |
| Deuteranopia (no green cones) | #8E813F | 0.225 |
| Tritanopia (no blue cones) | #F60030 | 0.046 |
| Achromatopsia (no color) | #737373 | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E01C45
#E01C45
oklch(58.3% 0.222 18.3)
- #008D91
#008D91
oklch(58.4% 0.099 198.3)
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 #E01C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.014
- Lipstick #D5174E ΔE 0.028
- Red Pantone #EF233C ΔE 0.035
- Imperial Red #E63946 ΔE 0.035
- Pink Red #F5054F ΔE 0.042
- Cherry #CF0234 ΔE 0.043
- Cerise #DE0C62 ΔE 0.044
- Cherry Red #F7022A ΔE 0.050
Use #E01C45 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.