#EF8339
Closest named color: Dusty Orange (#F0833A). oklch(71.7% 0.157 51.5), rgb(239, 131, 57).
Aa
Black text reads best on this color (7.97:1).
About this color
#EF8339 is a medium-light, vivid orange. In OKLCH its lightness is 72%, its chroma 0.157 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Orange (#F0833A), ΔE 0.002 away. Black text reads best on it, at 7.97:1.
| Hue family | Oranges |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Dusty Orange (#F0833A) |
| Black text | 7.97:1 |
| White text | 2.63:1 |
Values
| HEX | #EF8339 |
| RGB | rgb(239, 131, 57) |
| HSL | hsl(24, 85%, 58%) |
| OKLCH | oklch(71.7% 0.157 51.5) |
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 #EF8339 | 2.63:1 | Fails | Lc -56.0 | Large or bold text, headings |
| Black text on #EF8339 | 7.97:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #EF8339 text on white | 2.63:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #EF8339 text on black | 7.97:1 | AAA | Lc -51.1 | 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
#FDF3EE
oklch(97.1% 0.013 48.6)
-
Step 100
100
#FAE5D9
oklch(93.6% 0.028 51.8)
-
Step 200
200
#F8D0B9
oklch(88.6% 0.055 51.6)
-
Step 300
300
#F4AF86
oklch(81% 0.098 51.6)
-
Step 400
400 (this color)
#EF8339
oklch(71.7% 0.157 51.5)
-
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
#7C3900
oklch(42.6% 0.11 51.5)
-
Step 900
900
#682F00
oklch(37.6% 0.097 51.8)
-
Step 950
950
#401A00
oklch(27% 0.07 51.3)
#EF8339 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) | #A2912F | 0.133 |
| Deuteranopia (no green cones) | #BCA938 | 0.121 |
| Tritanopia (no blue cones) | #FF6C74 | 0.095 |
| Achromatopsia (no color) | #9F9F9F | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8339
#EF8339
oklch(71.7% 0.157 51.5)
- #00B2EE
#00B2EE
oklch(71.7% 0.146 231.7)
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 #EF8339, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Orange #F0833A ΔE 0.002
- Orange Wheel #F77F00 ΔE 0.024
- Pumpkin Orange #FB7D07 ΔE 0.027
- Faded Orange #F0944D ΔE 0.038
- Coral #FF7F50 ΔE 0.038
- Dull Orange #D8863B ΔE 0.040
- Pumpkin #E17701 ΔE 0.044
- Dark Orange #FF8C00 ΔE 0.044
Use #EF8339 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.