#EF8737
Closest named color: Dusty Orange (#F0833A). oklch(72.4% 0.156 54.2), rgb(239, 135, 55).
Aa
Black text reads best on this color (8.19:1).
About this color
#EF8737 is a medium-light, vivid orange. In OKLCH its lightness is 72%, its chroma 0.156 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Orange (#F0833A), ΔE 0.010 away. Black text reads best on it, at 8.19:1.
| Hue family | Oranges |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Dusty Orange (#F0833A) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #EF8737 |
| RGB | rgb(239, 135, 55) |
| HSL | hsl(26, 85%, 58%) |
| OKLCH | oklch(72.4% 0.156 54.2) |
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 #EF8737 | 2.56:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #EF8737 | 8.19:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #EF8737 text on white | 2.56:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #EF8737 text on black | 8.19:1 | AAA | Lc -52.2 | Large or bold text, headings |
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
#FAE5D9
oklch(93.6% 0.028 51.8)
-
Step 200
200
#F7D0B8
oklch(88.5% 0.055 53.4)
-
Step 300
300
#F2B084
oklch(80.9% 0.097 54.6)
-
Step 400
400 (this color)
#EF8737
oklch(72.4% 0.156 54.2)
-
Step 500
500
#D06900
oklch(63.1% 0.158 53.9)
-
Step 600
600
#AF5800
oklch(55.6% 0.139 54.3)
-
Step 700
700
#944900
oklch(49% 0.123 54)
-
Step 800
800
#7A3B00
oklch(42.6% 0.107 54)
-
Step 900
900
#673100
oklch(37.8% 0.095 54.2)
-
Step 950
950
#3F1B00
oklch(27% 0.068 53.5)
#EF8737 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) | #A5932C | 0.127 |
| Deuteranopia (no green cones) | #BEAB36 | 0.115 |
| Tritanopia (no blue cones) | #FF7077 | 0.100 |
| Achromatopsia (no color) | #A2A2A2 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8737
#EF8737
oklch(72.4% 0.156 54.2)
- #00B3F6
#00B3F6
oklch(72.3% 0.152 234.5)
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 #EF8737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Orange #F0833A ΔE 0.010
- Orange Wheel #F77F00 ΔE 0.024
- Pumpkin Orange #FB7D07 ΔE 0.028
- Faded Orange #F0944D ΔE 0.030
- Dark Orange #FF8C00 ΔE 0.037
- Dull Orange #D8863B ΔE 0.040
- Coral #FF7F50 ΔE 0.043
- Pastel Orange #FF964F ΔE 0.048
Use #EF8737 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.