#E73F55
Closest named color: Imperial Red (#E63946). oklch(62.2% 0.203 18.4), rgb(231, 63, 85).
Aa
Black text reads best on this color (5.23:1).
About this color
#E73F55 is a medium-light, vivid red. In OKLCH its lightness is 62%, its chroma 0.203 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.017 away. Black text reads best on it, at 5.23:1.
| Hue family | Reds |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.23:1 |
| White text | 4.00:1 |
Values
| HEX | #E73F55 |
| RGB | rgb(231, 63, 85) |
| HSL | hsl(352, 78%, 58%) |
| OKLCH | oklch(62.2% 0.203 18.4) |
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 #E73F55 | 4.00:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #E73F55 | 5.23:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #E73F55 text on white | 4.00:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #E73F55 text on black | 5.23:1 | AA | Lc -35.6 | 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
#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
#FAA7A8
oklch(81% 0.098 18.7)
-
Step 400
400
#F3727A
oklch(70.7% 0.159 18.2)
-
Step 500
500 (this color)
#E73F55
oklch(62.2% 0.203 18.4)
-
Step 600
600
#D6063D
oklch(55.6% 0.221 18.5)
-
Step 700
700
#B60032
oklch(49.2% 0.197 18.4)
-
Step 800
800
#960228
oklch(42.7% 0.17 18.4)
-
Step 900
900
#781525
oklch(37.6% 0.132 18.2)
-
Step 950
950
#470F16
oklch(27% 0.084 18)
#E73F55 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) | #6E6855 | 0.223 |
| Deuteranopia (no green cones) | #988C50 | 0.206 |
| Tritanopia (no blue cones) | #FD0049 | 0.050 |
| Achromatopsia (no color) | #7F7F7F | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E73F55
#E73F55
oklch(62.2% 0.203 18.4)
- #009A9E
#009A9E
oklch(62.3% 0.106 198)
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 #E73F55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.017
- Red Pantone #EF233C ΔE 0.034
- Paradise Pink #EF476F ΔE 0.037
- Red Pink #FA2A55 ΔE 0.037
- Faded Red #D3494E ΔE 0.040
- Strawberry #FB2943 ΔE 0.041
- Pinky Red #FC2647 ΔE 0.042
- Pastel Red #DB5856 ΔE 0.043
Use #E73F55 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.