#E53A25
Closest named color: Tomato Red (#EC2D01). oklch(60.8% 0.21 30.7), rgb(229, 58, 37).
Aa
Black text reads best on this color (4.96:1).
About this color
#E53A25 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.210 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.019 away. Black text reads best on it, at 4.96:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.210) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #E53A25 |
| RGB | rgb(229, 58, 37) |
| HSL | hsl(7, 79%, 52%) |
| OKLCH | oklch(60.8% 0.21 30.7) |
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 #E53A25 | 4.23:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #E53A25 | 4.96:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #E53A25 text on white | 4.23:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #E53A25 text on black | 4.96:1 | AA | Lc -34.0 | 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
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FDCCC3
oklch(88.5% 0.057 30.3)
-
Step 300
300
#FCA898
oklch(81% 0.103 31.3)
-
Step 400
400
#F6735F
oklch(70.7% 0.165 30.5)
-
Step 500
500 (this color)
#E53A25
oklch(60.8% 0.21 30.7)
-
Step 600
600
#D51900
oklch(55.5% 0.218 30.7)
-
Step 700
700
#B51400
oklch(49.2% 0.193 30.8)
-
Step 800
800
#950E00
oklch(42.6% 0.167 30.7)
-
Step 900
900
#7A1509
oklch(37.7% 0.137 30.7)
-
Step 950
950
#481008
oklch(27% 0.087 31.3)
#E53A25 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) | #6F6320 | 0.224 |
| Deuteranopia (no green cones) | #99891A | 0.204 |
| Tritanopia (no blue cones) | #FC0037 | 0.056 |
| Achromatopsia (no color) | #7B7B7B | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E53A25
#E53A25
oklch(60.8% 0.21 30.7)
- #0093A6
#0093A6
oklch(60.8% 0.105 210.7)
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 #E53A25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.019
- Vermillion #F4320C ΔE 0.029
- Imperial Red #E63946 ΔE 0.031
- Red Pantone #EF233C ΔE 0.038
- Deep Orange #DC4D01 ΔE 0.038
- Orangey Red #FA4224 ΔE 0.045
- Cherry Red #F7022A ΔE 0.046
- Pale Red #D9544D ΔE 0.046
Use #E53A25 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.