#EF8551
Closest named color: Dusty Orange (#F0833A). oklch(72.3% 0.146 45.7), rgb(239, 133, 81).
Aa
Black text reads best on this color (8.14:1).
About this color
#EF8551 is a medium-light, vivid orange. In OKLCH its lightness is 72%, its chroma 0.146 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Orange (#F0833A), ΔE 0.019 away. Black text reads best on it, at 8.14:1.
| Hue family | Oranges |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dusty Orange (#F0833A) |
| Black text | 8.14:1 |
| White text | 2.57:1 |
Values
| HEX | #EF8551 |
| RGB | rgb(239, 133, 81) |
| HSL | hsl(20, 83%, 63%) |
| OKLCH | oklch(72.3% 0.146 45.7) |
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 #EF8551 | 2.57:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #EF8551 | 8.14:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #EF8551 text on white | 2.57:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #EF8551 text on black | 8.14:1 | AAA | Lc -51.9 | 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
#F7CFBE
oklch(88.4% 0.051 44.3)
-
Step 300
300
#F3AE8F
oklch(80.9% 0.092 45.1)
-
Step 400
400 (this color)
#EF8551
oklch(72.3% 0.146 45.7)
-
Step 500
500
#DC5D00
oklch(63.1% 0.178 45.8)
-
Step 600
600
#BA4D00
oklch(55.5% 0.157 45.6)
-
Step 700
700
#9D4000
oklch(49% 0.139 45.7)
-
Step 800
800
#823400
oklch(42.8% 0.121 45.9)
-
Step 900
900
#6D2A00
oklch(37.7% 0.107 45.6)
-
Step 950
950
#431700
oklch(27% 0.076 45.7)
#EF8551 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) | #A2934C | 0.131 |
| Deuteranopia (no green cones) | #BCAA50 | 0.119 |
| Tritanopia (no blue cones) | #FF7079 | 0.080 |
| Achromatopsia (no color) | #A1A1A1 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF8551
#EF8551
oklch(72.3% 0.146 45.7)
- #00B6E7
#00B6E7
oklch(72.3% 0.138 225.9)
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 #EF8551, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Orange #F0833A ΔE 0.019
- Coral #FF7F50 ΔE 0.029
- Faded Orange #F0944D ΔE 0.037
- Melon #FF7855 ΔE 0.038
- Dark Peach #DE7E5D ΔE 0.039
- Orange Wheel #F77F00 ΔE 0.042
- Pumpkin Orange #FB7D07 ΔE 0.042
- Pinkish Orange #FF724C ΔE 0.045
Use #EF8551 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.