#E53D06
Closest named color: Tomato Red (#EC2D01). oklch(60.9% 0.211 35), rgb(229, 61, 6).
Aa
Black text reads best on this color (5.00:1).
About this color
#E53D06 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.211 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.020 away. Black text reads best on it, at 5.00:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.211) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #E53D06 |
| RGB | rgb(229, 61, 6) |
| HSL | hsl(15, 95%, 46%) |
| OKLCH | oklch(60.9% 0.211 35) |
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 #E53D06 | 4.19:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #E53D06 | 5.00:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #E53D06 text on white | 4.19:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #E53D06 text on black | 5.00:1 | AA | Lc -34.3 | 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
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FDE3DD
oklch(93.5% 0.03 33.1)
-
Step 200
200
#FCCCC0
oklch(88.4% 0.057 34.4)
-
Step 300
300
#FBA893
oklch(80.8% 0.103 34.8)
-
Step 400
400
#F57555
oklch(70.7% 0.165 35.2)
-
Step 500
500 (this color)
#E53D06
oklch(60.9% 0.211 35)
-
Step 600
600
#CC3300
oklch(55.6% 0.195 34.9)
-
Step 700
700
#AC2A00
oklch(49% 0.172 35)
-
Step 800
800
#8F2100
oklch(42.8% 0.15 35)
-
Step 900
900
#781A00
oklch(37.7% 0.132 34.9)
-
Step 950
950
#481004
oklch(27% 0.088 34.4)
#E53D06 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) | #726400 | 0.220 |
| Deuteranopia (no green cones) | #9B8900 | 0.197 |
| Tritanopia (no blue cones) | #FD0036 | 0.067 |
| Achromatopsia (no color) | #7C7C7C | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E53D06
#E53D06
oklch(60.9% 0.211 35)
- #0092AB
#0092AB
oklch(60.8% 0.108 215.5)
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 #E53D06, closest first.
No curated palette has a color within ΔE 0.04 of #E53D06.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.020
- Deep Orange #DC4D01 ΔE 0.027
- Vermillion #F4320C ΔE 0.029
- Orangey Red #FA4224 ΔE 0.045
- Red Orange #FD3C06 ΔE 0.047
- Imperial Red #E63946 ΔE 0.047
- Orangered #FE420F ΔE 0.051
- Red Pantone #EF233C ΔE 0.052
Use #E53D06 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.