#E73E45
Closest named color: Imperial Red (#E63946). oklch(61.8% 0.205 23.5), rgb(231, 62, 69).
Aa
Black text reads best on this color (5.17:1).
About this color
#E73E45 is a medium-dark, vivid red. In OKLCH its lightness is 62%, its chroma 0.205 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.008 away. Black text reads best on it, at 5.17:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #E73E45 |
| RGB | rgb(231, 62, 69) |
| HSL | hsl(358, 78%, 57%) |
| OKLCH | oklch(61.8% 0.205 23.5) |
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 #E73E45 | 4.05:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #E73E45 | 5.17:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #E73E45 text on white | 4.05:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #E73E45 text on black | 5.17:1 | AA | Lc -35.2 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCCC8
oklch(88.6% 0.055 23.8)
-
Step 300
300
#FBA7A2
oklch(80.9% 0.1 23.3)
-
Step 400
400
#F4726F
oklch(70.6% 0.161 23.4)
-
Step 500
500 (this color)
#E73E45
oklch(61.8% 0.205 23.5)
-
Step 600
600
#D7052B
oklch(55.6% 0.223 23.5)
-
Step 700
700
#B70022
oklch(49.2% 0.199 23.5)
-
Step 800
800
#97021B
oklch(42.7% 0.172 23.4)
-
Step 900
900
#79151C
oklch(37.7% 0.134 23.4)
-
Step 950
950
#471011
oklch(27% 0.084 23.8)
#E73E45 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) | #6F6744 | 0.223 |
| Deuteranopia (no green cones) | #9A8B3F | 0.203 |
| Tritanopia (no blue cones) | #FE0042 | 0.051 |
| Achromatopsia (no color) | #7E7E7E | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E73E45
#E73E45
oklch(61.8% 0.205 23.5)
- #0098A2
#0098A2
oklch(61.9% 0.105 203)
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 #E73E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.008
- Red Pantone #EF233C ΔE 0.027
- Pale Red #D9544D ΔE 0.038
- Faded Red #D3494E ΔE 0.038
- Strawberry #FB2943 ΔE 0.039
- Tomato Red #EC2D01 ΔE 0.041
- Pastel Red #DB5856 ΔE 0.042
- Pinky Red #FC2647 ΔE 0.042
Use #E73E45 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.