#E3731D
Closest named color: Pumpkin (#E17701). oklch(67.4% 0.165 51.4), rgb(227, 115, 29).
Aa
Black text reads best on this color (6.73:1).
About this color
#E3731D is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.165 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Pumpkin (#E17701), ΔE 0.014 away. Black text reads best on it, at 6.73:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Pumpkin (#E17701) |
| Black text | 6.73:1 |
| White text | 3.11:1 |
Values
| HEX | #E3731D |
| RGB | rgb(227, 115, 29) |
| HSL | hsl(26, 78%, 50%) |
| OKLCH | oklch(67.4% 0.165 51.4) |
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 #E3731D | 3.11:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #E3731D | 6.73:1 | AA | Lc 46.5 | Large or bold text, headings |
| #E3731D text on white | 3.11:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #E3731D text on black | 6.73:1 | AA | Lc -44.2 | 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 400.
-
Step 50
50
#FEF3ED
oklch(97.1% 0.014 50.8)
-
Step 100
100
#FBE5D8
oklch(93.6% 0.03 52.7)
-
Step 200
200
#F9CFB7
oklch(88.4% 0.058 51.4)
-
Step 300
300
#F6AE83
oklch(81% 0.102 51.6)
-
Step 400
400 (this color)
#E3731D
oklch(67.4% 0.165 51.4)
-
Step 500
500
#D46600
oklch(63.2% 0.164 51.4)
-
Step 600
600
#B35500
oklch(55.7% 0.144 51.3)
-
Step 700
700
#974700
oklch(49.2% 0.127 51.6)
-
Step 800
800
#7D3900
oklch(42.8% 0.111 51.1)
-
Step 900
900
#692F00
oklch(37.8% 0.098 51.3)
-
Step 950
950
#401A00
oklch(27% 0.07 51.3)
#E3731D 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) | #948206 | 0.141 |
| Deuteranopia (no green cones) | #AF9C1A | 0.128 |
| Tritanopia (no blue cones) | #F95A63 | 0.099 |
| Achromatopsia (no color) | #929292 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3731D
#E3731D
oklch(67.4% 0.165 51.4)
- #00A4DB
#00A4DB
oklch(67.4% 0.137 231.4)
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 #E3731D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pumpkin #E17701 ΔE 0.014
- Chocolate #D2691E ΔE 0.041
- Dull Orange #D8863B ΔE 0.042
- Dusty Orange #F0833A ΔE 0.045
- Burnt Sienna #E76F51 ΔE 0.046
- Orange Wheel #F77F00 ΔE 0.049
- Peru #CD853F ΔE 0.050
- Dark Peach #DE7E5D ΔE 0.050
Use #E3731D 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.