#E3522F
Closest named color: Deep Orange (#DC4D01). oklch(63% 0.187 34.7), rgb(227, 82, 47).
Aa
Black text reads best on this color (5.51:1).
About this color
#E3522F is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.187 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.027 away. Black text reads best on it, at 5.51:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #E3522F |
| RGB | rgb(227, 82, 47) |
| HSL | hsl(12, 76%, 54%) |
| OKLCH | oklch(63% 0.187 34.7) |
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 #E3522F | 3.80:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #E3522F | 5.51:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #E3522F text on white | 3.80:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #E3522F text on black | 5.51:1 | AA | Lc -37.1 | 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
#F9CEC3
oklch(88.5% 0.051 34.7)
-
Step 300
300
#F5AC99
oklch(80.9% 0.091 35.2)
-
Step 400
400
#ED7B60
oklch(70.7% 0.147 34.5)
-
Step 500
500 (this color)
#E3522F
oklch(63% 0.187 34.7)
-
Step 600
600
#CC3200
oklch(55.5% 0.196 34.7)
-
Step 700
700
#AD2900
oklch(49.1% 0.173 34.7)
-
Step 800
800
#8F2000
oklch(42.7% 0.151 34.7)
-
Step 900
900
#74200A
oklch(37.6% 0.121 34.9)
-
Step 950
950
#451409
oklch(27% 0.078 34.2)
#E3522F 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) | #7C6E2A | 0.190 |
| Deuteranopia (no green cones) | #9F8F29 | 0.176 |
| Tritanopia (no blue cones) | #FA294B | 0.074 |
| Achromatopsia (no color) | #838383 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3522F
#E3522F
oklch(63% 0.187 34.7)
- #0099B2
#0099B2
oklch(62.8% 0.111 214.7)
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 #E3522F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.027
- Pale Red #D9544D ΔE 0.034
- Pastel Red #DB5856 ΔE 0.040
- Orangey Red #FA4224 ΔE 0.044
- Vermillion #F4320C ΔE 0.046
- Tomato Red #EC2D01 ΔE 0.047
- Dark Coral #CF524E ΔE 0.049
- Rusty Orange #CD5909 ΔE 0.050
Use #E3522F 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.