#E52D19
Closest named color: Tomato Red (#EC2D01). oklch(59.7% 0.22 30.5), rgb(229, 45, 25).
Aa
Black text reads best on this color (4.72:1).
About this color
#E52D19 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.220 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.016 away. Black text reads best on it, at 4.72:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.220) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #E52D19 |
| RGB | rgb(229, 45, 25) |
| HSL | hsl(6, 80%, 50%) |
| OKLCH | oklch(59.7% 0.22 30.5) |
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 #E52D19 | 4.44:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #E52D19 | 4.72:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #E52D19 text on white | 4.44:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #E52D19 text on black | 4.72:1 | AA | Lc -32.7 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC2
oklch(88.4% 0.06 29.9)
-
Step 300
300
#FEA697
oklch(80.8% 0.107 30.1)
-
Step 400
400
#F9705B
oklch(70.7% 0.172 30.7)
-
Step 500
500 (this color)
#E52D19
oklch(59.7% 0.22 30.5)
-
Step 600
600
#D61600
oklch(55.6% 0.22 30.4)
-
Step 700
700
#B51100
oklch(49.1% 0.194 30.5)
-
Step 800
800
#960C00
oklch(42.7% 0.169 30.4)
-
Step 900
900
#7C0F04
oklch(37.6% 0.143 30.6)
-
Step 950
950
#490D07
oklch(26.9% 0.091 30.1)
#E52D19 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) | #6A5E12 | 0.238 |
| Deuteranopia (no green cones) | #978604 | 0.214 |
| Tritanopia (no blue cones) | #FD002C | 0.050 |
| Achromatopsia (no color) | #777777 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E52D19
#E52D19
oklch(59.7% 0.22 30.5)
- #008FA2
#008FA2
oklch(59.6% 0.104 211.1)
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 #E52D19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.016
- Vermillion #F4320C ΔE 0.032
- Red Pantone #EF233C ΔE 0.036
- Imperial Red #E63946 ΔE 0.036
- Cherry Red #F7022A ΔE 0.041
- Fire Engine Red #FE0002 ΔE 0.047
- Deep Orange #DC4D01 ΔE 0.048
- Crimson #DC143C ΔE 0.048
Use #E52D19 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.