#EF9039
Closest named color: Faded Orange (#F0944D). oklch(73.9% 0.151 58.9), rgb(239, 144, 57).
Aa
Black text reads best on this color (8.71:1).
About this color
#EF9039 is a medium-light, vivid orange. In OKLCH its lightness is 74%, its chroma 0.151 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Faded Orange (#F0944D), ΔE 0.016 away. Black text reads best on it, at 8.71:1.
| Hue family | Oranges |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Faded Orange (#F0944D) |
| Black text | 8.71:1 |
| White text | 2.40:1 |
Values
| HEX | #EF9039 |
| RGB | rgb(239, 144, 57) |
| HSL | hsl(29, 85%, 58%) |
| OKLCH | oklch(73.9% 0.151 58.9) |
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 #EF9039 | 2.40:1 | Fails | Lc -52.0 | Large or bold text, headings |
| Black text on #EF9039 | 8.71:1 | AAA | Lc 56.9 | Large or bold text, headings |
| #EF9039 text on white | 2.40:1 | Fails | Lc 47.1 | Large or bold text, headings |
| #EF9039 text on black | 8.71:1 | AAA | Lc -55.0 | 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
#FCF4ED
oklch(97.1% 0.013 63.9)
-
Step 100
100
#F8E6D8
oklch(93.6% 0.027 60.4)
-
Step 200
200
#F4D2B7
oklch(88.6% 0.053 60.5)
-
Step 300
300
#EFB283
oklch(80.9% 0.094 58.5)
-
Step 400
400 (this color)
#EF9039
oklch(73.9% 0.151 58.9)
-
Step 500
500
#CA6F00
oklch(63.2% 0.15 59.1)
-
Step 600
600
#AA5C00
oklch(55.5% 0.132 58.7)
-
Step 700
700
#904D00
oklch(49.1% 0.117 58.7)
-
Step 800
800
#763E00
oklch(42.5% 0.101 58.7)
-
Step 900
900
#633300
oklch(37.6% 0.089 58.6)
-
Step 950
950
#3D1D00
oklch(27% 0.064 58.4)
#EF9039 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) | #AD9A2D | 0.112 |
| Deuteranopia (no green cones) | #C3AF39 | 0.101 |
| Tritanopia (no blue cones) | #FF7B7E | 0.103 |
| Achromatopsia (no color) | #A7A7A7 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF9039
#EF9039
oklch(73.9% 0.151 58.9)
- #33B6FE
#33B6FE
oklch(73.9% 0.15 238.7)
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 #EF9039, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Orange #F0944D ΔE 0.016
- Dusty Orange #F0833A ΔE 0.030
- Dark Orange #FF8C00 ΔE 0.031
- Tangerine #FF9408 ΔE 0.035
- Pastel Orange #FF964F ΔE 0.036
- Orange Wheel #F77F00 ΔE 0.037
- Gamboge #EE9B00 ΔE 0.039
- Pumpkin Orange #FB7D07 ΔE 0.042
Use #EF9039 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.