#E1571D
Closest named color: Deep Orange (#DC4D01). oklch(63.1% 0.184 40), rgb(225, 87, 29).
Aa
Black text reads best on this color (5.58:1).
About this color
#E1571D is a medium-light, vivid orange. In OKLCH its lightness is 63%, its chroma 0.184 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.022 away. Black text reads best on it, at 5.58:1.
| Hue family | Oranges |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #E1571D |
| RGB | rgb(225, 87, 29) |
| HSL | hsl(18, 77%, 50%) |
| OKLCH | oklch(63.1% 0.184 40) |
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 #E1571D | 3.76:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #E1571D | 5.58:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #E1571D text on white | 3.76:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #E1571D text on black | 5.58:1 | AA | Lc -37.5 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FAE5DD
oklch(93.7% 0.026 42.1)
-
Step 200
200
#F7CFC1
oklch(88.5% 0.049 40.2)
-
Step 300
300
#F4AD95
oklch(80.9% 0.09 39.5)
-
Step 400
400
#EB7E57
oklch(70.8% 0.145 40.1)
-
Step 500
500 (this color)
#E1571D
oklch(63.1% 0.184 40)
-
Step 600
600
#C34300
oklch(55.7% 0.174 40.1)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#722400
oklch(37.7% 0.117 40.3)
-
Step 950
950
#441605
oklch(27.1% 0.076 39.8)
#E1571D 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) | #7F7011 | 0.182 |
| Deuteranopia (no green cones) | #A18F14 | 0.164 |
| Tritanopia (no blue cones) | #F8324C | 0.083 |
| Achromatopsia (no color) | #848484 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1571D
#E1571D
oklch(63.1% 0.184 40)
- #0099B9
#0099B9
oklch(63.1% 0.115 219.7)
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 #E1571D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.022
- Rusty Orange #CD5909 ΔE 0.039
- Chocolate #D2691E ΔE 0.042
- Pale Red #D9544D ΔE 0.047
- Terra Cotta #C9643B ΔE 0.047
- Terracotta #CA6641 ΔE 0.048
- Terracota #CB6843 ΔE 0.049
- Orange Pant #FB5607 ΔE 0.049
Use #E1571D 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.