#E73C3F
Closest named color: Imperial Red (#E63946). oklch(61.5% 0.207 24.9), rgb(231, 60, 63).
Aa
Black text reads best on this color (5.11:1).
About this color
#E73C3F is a medium-dark, vivid red. In OKLCH its lightness is 62%, its chroma 0.207 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.010 away. Black text reads best on it, at 5.11:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #E73C3F |
| RGB | rgb(231, 60, 63) |
| HSL | hsl(359, 78%, 57%) |
| OKLCH | oklch(61.5% 0.207 24.9) |
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 #E73C3F | 4.10:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #E73C3F | 5.11:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #E73C3F text on white | 4.10:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #E73C3F text on black | 5.11:1 | AA | Lc -34.9 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FDCBC7
oklch(88.5% 0.057 23.6)
-
Step 300
300
#FCA7A0
oklch(81% 0.102 24.7)
-
Step 400
400
#F5726C
oklch(70.7% 0.162 24.7)
-
Step 500
500 (this color)
#E73C3F
oklch(61.5% 0.207 24.9)
-
Step 600
600
#D80023
oklch(55.6% 0.225 25)
-
Step 700
700
#B7001C
oklch(49.1% 0.199 25)
-
Step 800
800
#970015
oklch(42.6% 0.173 25)
-
Step 900
900
#7A1418
oklch(37.8% 0.136 25.1)
-
Step 950
950
#480F0F
oklch(27% 0.086 25.1)
#E73C3F 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) | #6F663D | 0.225 |
| Deuteranopia (no green cones) | #9A8B39 | 0.206 |
| Tritanopia (no blue cones) | #FE003F | 0.051 |
| Achromatopsia (no color) | #7D7D7D | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E73C3F
#E73C3F
oklch(61.5% 0.207 24.9)
- #0096A3
#0096A3
oklch(61.4% 0.105 205.6)
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 #E73C3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.010
- Red Pantone #EF233C ΔE 0.026
- Tomato Red #EC2D01 ΔE 0.036
- Vermillion #F4320C ΔE 0.038
- Pale Red #D9544D ΔE 0.039
- Strawberry #FB2943 ΔE 0.039
- Faded Red #D3494E ΔE 0.039
- Cherry Red #F7022A ΔE 0.042
Use #E73C3F 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.