#EF8558
Closest named color: Dusty Orange (#F0833A). oklch(72.4% 0.143 43.1), rgb(239, 133, 88).
Aa
Black text reads best on this color (8.16:1).
About this color
#EF8558 is a medium-light, vivid orange. In OKLCH its lightness is 72%, its chroma 0.143 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Orange (#F0833A), ΔE 0.026 away. Black text reads best on it, at 8.16:1.
| Hue family | Oranges |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Dusty Orange (#F0833A) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #EF8558 |
| RGB | rgb(239, 133, 88) |
| HSL | hsl(18, 83%, 64%) |
| OKLCH | oklch(72.4% 0.143 43.1) |
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 #EF8558 | 2.57:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #EF8558 | 8.16:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #EF8558 text on white | 2.57:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #EF8558 text on black | 8.16:1 | AAA | Lc -52.0 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FAE5DC
oklch(93.6% 0.026 44.7)
-
Step 200
200
#F7CFBF
oklch(88.4% 0.05 43)
-
Step 300
300
#F3AE92
oklch(80.9% 0.09 43)
-
Step 400
400 (this color)
#EF8558
oklch(72.4% 0.143 43.1)
-
Step 500
500
#DF590B
oklch(63% 0.183 43)
-
Step 600
600
#BE4900
oklch(55.6% 0.165 43.1)
-
Step 700
700
#A13C00
oklch(49.1% 0.146 42.8)
-
Step 800
800
#853000
oklch(42.7% 0.127 42.7)
-
Step 900
900
#6F2700
oklch(37.6% 0.111 42.9)
-
Step 950
950
#431702
oklch(27% 0.075 43.9)
#EF8558 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) | #A19354 | 0.132 |
| Deuteranopia (no green cones) | #BBAA57 | 0.120 |
| Tritanopia (no blue cones) | #FF717A | 0.073 |
| Achromatopsia (no color) | #A1A1A1 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8558
#EF8558
oklch(72.4% 0.143 43.1)
- #00B7E3
#00B7E3
oklch(72.3% 0.135 223.2)
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 #EF8558, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Orange #F0833A ΔE 0.026
- Coral #FF7F50 ΔE 0.028
- Melon #FF7855 ΔE 0.036
- Dark Peach #DE7E5D ΔE 0.037
- Faded Orange #F0944D ΔE 0.041
- Salmon #FA8072 ΔE 0.041
- Pinkish Orange #FF724C ΔE 0.043
- Dark Salmon #E9967A ΔE 0.045
Use #EF8558 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.