#EF4B43
Closest named color: Orangey Red (#FA4224). oklch(64.4% 0.202 27.2), rgb(239, 75, 67).
Aa
Black text reads best on this color (5.75:1).
About this color
#EF4B43 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.202 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Orangey Red (#FA4224), ΔE 0.029 away. Black text reads best on it, at 5.75:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Orangey Red (#FA4224) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #EF4B43 |
| RGB | rgb(239, 75, 67) |
| HSL | hsl(3, 84%, 60%) |
| OKLCH | oklch(64.4% 0.202 27.2) |
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 #EF4B43 | 3.64:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #EF4B43 | 5.75:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #EF4B43 text on white | 3.64:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #EF4B43 text on black | 5.75:1 | AA | Lc -38.8 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC6
oklch(88.5% 0.055 26.5)
-
Step 300
300
#FAA89E
oklch(80.9% 0.099 27.1)
-
Step 400
400
#F37469
oklch(70.6% 0.158 26.9)
-
Step 500
500 (this color)
#EF4B43
oklch(64.4% 0.202 27.2)
-
Step 600
600
#D6131C
oklch(55.6% 0.22 27.2)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#960910
oklch(42.7% 0.169 27.2)
-
Step 900
900
#781816
oklch(37.7% 0.131 27.1)
-
Step 950
950
#47110E
oklch(27.1% 0.083 27.3)
#EF4B43 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) | #7A6F41 | 0.215 |
| Deuteranopia (no green cones) | #A3933D | 0.197 |
| Tritanopia (no blue cones) | #FF124B | 0.059 |
| Achromatopsia (no color) | #868686 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF4B43
#EF4B43
oklch(64.4% 0.202 27.2)
- #009FAF
#009FAF
oklch(64.2% 0.11 207.4)
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 #EF4B43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangey Red #FA4224 ΔE 0.029
- Light Red #FF474C ΔE 0.032
- Imperial Red #E63946 ΔE 0.037
- Watermelon #FD4659 ΔE 0.038
- Vermillion #F4320C ΔE 0.039
- Orangered #FE420F ΔE 0.040
- Red Orange #FD3C06 ΔE 0.040
- Pastel Red #DB5856 ΔE 0.040
Use #EF4B43 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.