#EF5722
Closest named color: Orange Pant (#FB5607). oklch(65.4% 0.197 37.8), rgb(239, 87, 34).
Aa
Black text reads best on this color (6.05:1).
About this color
#EF5722 is a medium-light, vivid red. In OKLCH its lightness is 65%, its chroma 0.197 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Pant (#FB5607), ΔE 0.023 away. Black text reads best on it, at 6.05:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #EF5722 |
| RGB | rgb(239, 87, 34) |
| HSL | hsl(16, 86%, 54%) |
| OKLCH | oklch(65.4% 0.197 37.8) |
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 #EF5722 | 3.46:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #EF5722 | 6.05:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #EF5722 text on white | 3.46:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #EF5722 text on black | 6.05:1 | AA | Lc -40.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FACEC0
oklch(88.6% 0.054 38.4)
-
Step 300
300
#F7AB94
oklch(80.9% 0.096 37.5)
-
Step 400
400
#F07A55
oklch(70.8% 0.154 38.1)
-
Step 500
500 (this color)
#EF5722
oklch(65.4% 0.197 37.8)
-
Step 600
600
#C63D00
oklch(55.5% 0.182 37.9)
-
Step 700
700
#A83200
oklch(49.1% 0.162 37.8)
-
Step 800
800
#8B2800
oklch(42.8% 0.14 37.9)
-
Step 900
900
#752000
oklch(37.7% 0.124 37.7)
-
Step 950
950
#461304
oklch(27% 0.082 37.1)
#EF5722 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) | #837418 | 0.199 |
| Deuteranopia (no green cones) | #A99618 | 0.179 |
| Tritanopia (no blue cones) | #FF2A4D | 0.081 |
| Achromatopsia (no color) | #8A8A8A | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF5722
#EF5722
oklch(65.4% 0.197 37.8)
- #00A1BF
#00A1BF
oklch(65.4% 0.117 217.3)
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 #EF5722, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Pant #FB5607 ΔE 0.023
- Blood Orange #FE4B03 ΔE 0.029
- Orange Red #FF4500 ΔE 0.034
- Bright Orange #FF5B00 ΔE 0.034
- Orangey Red #FA4224 ΔE 0.035
- Orangered #FE420F ΔE 0.035
- Red Orange #FD3C06 ΔE 0.040
- Deep Orange #DC4D01 ΔE 0.045
Use #EF5722 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.