#E52439
Closest named color: Red Pantone (#EF233C). oklch(59.4% 0.222 22.9), rgb(229, 36, 57).
Aa
Black text reads best on this color (4.64:1).
About this color
#E52439 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.222 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Red Pantone (#EF233C), ΔE 0.020 away. Black text reads best on it, at 4.64:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.222) |
| Temperature | warm |
| Nearest name | Red Pantone (#EF233C) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #E52439 |
| RGB | rgb(229, 36, 57) |
| HSL | hsl(353, 79%, 52%) |
| OKLCH | oklch(59.4% 0.222 22.9) |
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 #E52439 | 4.52:1 | AA | Lc -74.9 | Content text, not long reading |
| Black text on #E52439 | 4.64:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #E52439 text on white | 4.52:1 | AA | Lc 69.4 | Content text, not long reading |
| #E52439 text on black | 4.64:1 | AA | Lc -32.3 | 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
#FFE2E0
oklch(93.6% 0.032 22.5)
-
Step 200
200
#FFCAC7
oklch(88.5% 0.061 22.1)
-
Step 300
300
#FFA4A0
oklch(80.8% 0.109 22.5)
-
Step 400
400
#FA6D6C
oklch(70.7% 0.173 23)
-
Step 500
500 (this color)
#E52439
oklch(59.4% 0.222 22.9)
-
Step 600
600
#D8002C
oklch(55.7% 0.225 23.1)
-
Step 700
700
#B70024
oklch(49.2% 0.198 23)
-
Step 800
800
#97001C
oklch(42.7% 0.172 22.9)
-
Step 900
900
#7D0A19
oklch(37.7% 0.145 22.9)
-
Step 950
950
#4A0C0F
oklch(27.1% 0.092 23.5)
#E52439 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) | #655C38 | 0.244 |
| Deuteranopia (no green cones) | #938531 | 0.224 |
| Tritanopia (no blue cones) | #FC002F | 0.043 |
| Achromatopsia (no color) | #767676 | 0.224 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E52439
#E52439
oklch(59.4% 0.222 22.9)
- #009099
#009099
oklch(59.5% 0.101 202.6)
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 #E52439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Pantone #EF233C ΔE 0.020
- Imperial Red #E63946 ΔE 0.023
- Crimson #DC143C ΔE 0.026
- Cherry Red #F7022A ΔE 0.035
- Tomato Red #EC2D01 ΔE 0.040
- Pink Red #F5054F ΔE 0.042
- Strawberry #FB2943 ΔE 0.046
- Lipstick #D5174E ΔE 0.048
Use #E52439 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.