#E3740B
Closest named color: Pumpkin (#E17701). oklch(67.5% 0.167 53.6), rgb(227, 116, 11).
Aa
Black text reads best on this color (6.76:1).
About this color
#E3740B is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.167 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Pumpkin (#E17701), ΔE 0.008 away. Black text reads best on it, at 6.76:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Pumpkin (#E17701) |
| Black text | 6.76:1 |
| White text | 3.10:1 |
Values
| HEX | #E3740B |
| RGB | rgb(227, 116, 11) |
| HSL | hsl(29, 91%, 47%) |
| OKLCH | oklch(67.5% 0.167 53.6) |
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 #E3740B | 3.10:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #E3740B | 6.76:1 | AA | Lc 46.7 | Large or bold text, headings |
| #E3740B text on white | 3.10:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #E3740B text on black | 6.76:1 | AA | Lc -44.4 | 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
#FDF3ED
oklch(97% 0.013 53.4)
-
Step 100
100
#FBE5D8
oklch(93.6% 0.03 52.7)
-
Step 200
200
#F9D0B6
oklch(88.6% 0.058 54.2)
-
Step 300
300
#F6AE7F
oklch(80.9% 0.105 53.8)
-
Step 400
400 (this color)
#E3740B
oklch(67.5% 0.167 53.6)
-
Step 500
500
#D16900
oklch(63.2% 0.159 53.6)
-
Step 600
600
#B05700
oklch(55.5% 0.14 53.4)
-
Step 700
700
#954900
oklch(49.2% 0.124 53.7)
-
Step 800
800
#7B3B00
oklch(42.8% 0.108 53.6)
-
Step 900
900
#673000
oklch(37.6% 0.095 53.2)
-
Step 950
950
#3F1B00
oklch(27% 0.068 53.5)
#E3740B 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) | #958300 | 0.138 |
| Deuteranopia (no green cones) | #B09C05 | 0.125 |
| Tritanopia (no blue cones) | #F95A63 | 0.106 |
| Achromatopsia (no color) | #929292 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3740B
#E3740B
oklch(67.5% 0.167 53.6)
- #00A3DF
#00A3DF
oklch(67.4% 0.141 233.8)
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 #E3740B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pumpkin #E17701 ΔE 0.008
- Dull Orange #D8863B ΔE 0.041
- Chocolate #D2691E ΔE 0.043
- Dusty Orange #F0833A ΔE 0.046
- Orange Wheel #F77F00 ΔE 0.046
- Peru #CD853F ΔE 0.049
- Pumpkin Orange #FB7D07 ΔE 0.050
- Browny Orange #CA6B02 ΔE 0.053
Use #E3740B 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.