#EF8018
Closest named color: Orange Wheel (#F77F00). oklch(71.1% 0.169 55.3), rgb(239, 128, 24).
Aa
Black text reads best on this color (7.77:1).
About this color
#EF8018 is a medium-light, vivid orange. In OKLCH its lightness is 71%, its chroma 0.169 and its hue 55°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Wheel (#F77F00), ΔE 0.014 away. Black text reads best on it, at 7.77:1.
| Hue family | Oranges |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Orange Wheel (#F77F00) |
| Black text | 7.77:1 |
| White text | 2.70:1 |
Values
| HEX | #EF8018 |
| RGB | rgb(239, 128, 24) |
| HSL | hsl(29, 87%, 52%) |
| OKLCH | oklch(71.1% 0.169 55.3) |
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 #EF8018 | 2.70:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #EF8018 | 7.77:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #EF8018 text on white | 2.70:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #EF8018 text on black | 7.77:1 | AAA | Lc -50.0 | 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
#FDF3ED
oklch(97% 0.013 53.4)
-
Step 100
100
#FBE5D7
oklch(93.6% 0.031 54.7)
-
Step 200
200
#F9D0B5
oklch(88.6% 0.059 55.2)
-
Step 300
300
#F6AE7D
oklch(80.9% 0.106 54.9)
-
Step 400
400 (this color)
#EF8018
oklch(71.1% 0.169 55.3)
-
Step 500
500
#CE6B00
oklch(63.1% 0.155 55.5)
-
Step 600
600
#AE5900
oklch(55.6% 0.137 55.3)
-
Step 700
700
#934A00
oklch(49.1% 0.121 55.1)
-
Step 800
800
#793C00
oklch(42.6% 0.105 55.3)
-
Step 900
900
#663100
oklch(37.7% 0.094 54.7)
-
Step 950
950
#3E1C00
oklch(27% 0.066 55.9)
#EF8018 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) | #A18E00 | 0.136 |
| Deuteranopia (no green cones) | #BCA716 | 0.122 |
| Tritanopia (no blue cones) | #FF676E | 0.107 |
| Achromatopsia (no color) | #9D9D9D | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8018
#EF8018
oklch(71.1% 0.169 55.3)
- #00AEF2
#00AEF2
oklch(70.9% 0.152 235.6)
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 #EF8018, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Wheel #F77F00 ΔE 0.014
- Dusty Orange #F0833A ΔE 0.018
- Pumpkin Orange #FB7D07 ΔE 0.021
- Pumpkin #E17701 ΔE 0.034
- Dull Orange #D8863B ΔE 0.041
- Dark Orange #FF8C00 ΔE 0.042
- Faded Orange #F0944D ΔE 0.048
- Coral #FF7F50 ΔE 0.051
Use #EF8018 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.