#E3552E
Closest named color: Deep Orange (#DC4D01). oklch(63.3% 0.185 35.9), rgb(227, 85, 46).
Aa
Black text reads best on this color (5.60:1).
About this color
#E3552E is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.185 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.028 away. Black text reads best on it, at 5.60:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #E3552E |
| RGB | rgb(227, 85, 46) |
| HSL | hsl(13, 76%, 54%) |
| OKLCH | oklch(63.3% 0.185 35.9) |
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 #E3552E | 3.74:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #E3552E | 5.60:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #E3552E text on white | 3.74:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #E3552E text on black | 5.60:1 | AA | Lc -37.6 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FBE4DE
oklch(93.6% 0.027 35)
-
Step 200
200
#F8CEC3
oklch(88.5% 0.05 35.1)
-
Step 300
300
#F5AC98
oklch(80.9% 0.091 35.9)
-
Step 400
400
#EC7C5F
oklch(70.7% 0.145 35.5)
-
Step 500
500 (this color)
#E3552E
oklch(63.3% 0.185 35.9)
-
Step 600
600
#CA3700
oklch(55.6% 0.191 36)
-
Step 700
700
#AB2D00
oklch(49.1% 0.169 35.9)
-
Step 800
800
#8D2300
oklch(42.6% 0.147 35.8)
-
Step 900
900
#742109
oklch(37.7% 0.121 35.7)
-
Step 950
950
#441508
oklch(27% 0.076 36.2)
#E3552E 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) | #7E7028 | 0.186 |
| Deuteranopia (no green cones) | #A19028 | 0.171 |
| Tritanopia (no blue cones) | #FA2F4D | 0.075 |
| Achromatopsia (no color) | #848484 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3552E
#E3552E
oklch(63.3% 0.185 35.9)
- #009AB5
#009AB5
oklch(63.2% 0.112 216)
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 #E3552E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.028
- Pale Red #D9544D ΔE 0.036
- Pastel Red #DB5856 ΔE 0.041
- Orangey Red #FA4224 ΔE 0.045
- Orange Pant #FB5607 ΔE 0.048
- Rusty Orange #CD5909 ΔE 0.048
- Vermillion #F4320C ΔE 0.049
- Blood Orange #FE4B03 ΔE 0.050
Use #E3552E 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.