#EF8100
Closest named color: Orange Wheel (#F77F00). oklch(71.2% 0.171 57.4), rgb(239, 129, 0).
Aa
Black text reads best on this color (7.81:1).
About this color
#EF8100 is a medium-light, vivid orange. In OKLCH its lightness is 71%, its chroma 0.171 and its hue 57°. 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 7.81:1.
| Hue family | Oranges |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Orange Wheel (#F77F00) |
| Black text | 7.81:1 |
| White text | 2.68:1 |
Values
| HEX | #EF8100 |
| RGB | rgb(239, 129, 0) |
| HSL | hsl(32, 100%, 47%) |
| OKLCH | oklch(71.2% 0.171 57.4) |
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 #EF8100 | 2.68:1 | Fails | Lc -56.8 | Large or bold text, headings |
| Black text on #EF8100 | 7.81:1 | AAA | Lc 52.4 | Large or bold text, headings |
| #EF8100 text on white | 2.68:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #EF8100 text on black | 7.81:1 | AAA | Lc -50.3 | 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
#FDF3EC
oklch(97% 0.014 57.6)
-
Step 100
100
#FBE5D6
oklch(93.6% 0.031 56.6)
-
Step 200
200
#F8D0B3
oklch(88.4% 0.06 57.8)
-
Step 300
300
#F5AF7A
oklch(80.9% 0.107 57.7)
-
Step 400
400 (this color)
#EF8100
oklch(71.2% 0.171 57.4)
-
Step 500
500
#CC6D00
oklch(63.1% 0.152 57.3)
-
Step 600
600
#AC5B00
oklch(55.6% 0.134 57.3)
-
Step 700
700
#914C00
oklch(49.1% 0.118 57.5)
-
Step 800
800
#783E00
oklch(42.9% 0.103 57.6)
-
Step 900
900
#643300
oklch(37.7% 0.09 58)
-
Step 950
950
#3D1D00
oklch(27% 0.064 58.4)
#EF8100 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) | #A28E00 | 0.133 |
| Deuteranopia (no green cones) | #BDA800 | 0.121 |
| Tritanopia (no blue cones) | #FF676E | 0.114 |
| Achromatopsia (no color) | #9E9E9E | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8100
#EF8100
oklch(71.2% 0.171 57.4)
- #00AEF7
#00AEF7
oklch(71.2% 0.157 237.5)
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 #EF8100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Wheel #F77F00 ΔE 0.014
- Pumpkin Orange #FB7D07 ΔE 0.022
- Dusty Orange #F0833A ΔE 0.024
- Pumpkin #E17701 ΔE 0.036
- Dark Orange #FF8C00 ΔE 0.040
- Dull Orange #D8863B ΔE 0.042
- Faded Orange #F0944D ΔE 0.049
- Tangerine #FF9408 ΔE 0.054
Use #EF8100 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.