#EF3A4B
Closest named color: Imperial Red (#E63946). oklch(62.9% 0.215 21.4), rgb(239, 58, 75).
Aa
Black text reads best on this color (5.37:1).
About this color
#EF3A4B is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.215 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.019 away. Black text reads best on it, at 5.37:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #EF3A4B |
| RGB | rgb(239, 58, 75) |
| HSL | hsl(354, 85%, 58%) |
| OKLCH | oklch(62.9% 0.215 21.4) |
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 #EF3A4B | 3.90:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #EF3A4B | 5.37:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #EF3A4B text on white | 3.90:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #EF3A4B text on black | 5.37:1 | AA | Lc -36.7 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E1
oklch(93.5% 0.031 20.2)
-
Step 200
200
#FECBC8
oklch(88.6% 0.058 22.2)
-
Step 300
300
#FEA5A3
oklch(80.9% 0.106 21.1)
-
Step 400
400
#F86F71
oklch(70.8% 0.168 21.5)
-
Step 500
500 (this color)
#EF3A4B
oklch(62.9% 0.215 21.4)
-
Step 600
600
#D70032
oklch(55.5% 0.224 21.5)
-
Step 700
700
#B60029
oklch(49% 0.197 21.4)
-
Step 800
800
#970020
oklch(42.7% 0.172 21.5)
-
Step 900
900
#7B0E1D
oklch(37.6% 0.141 21.5)
-
Step 950
950
#490D12
oklch(27.1% 0.089 21.3)
#EF3A4B 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) | #70684A | 0.236 |
| Deuteranopia (no green cones) | #9D8F45 | 0.217 |
| Tritanopia (no blue cones) | #FF0042 | 0.039 |
| Achromatopsia (no color) | #818181 | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF3A4B
#EF3A4B
oklch(62.9% 0.215 21.4)
- #009CA4
#009CA4
oklch(63% 0.107 201.2)
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 #EF3A4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.019
- Red Pantone #EF233C ΔE 0.024
- Strawberry #FB2943 ΔE 0.024
- Pinky Red #FC2647 ΔE 0.026
- Red Pink #FA2A55 ΔE 0.028
- Watermelon #FD4659 ΔE 0.036
- Neon Red #FF073A ΔE 0.038
- Pink Red #F5054F ΔE 0.038
Use #EF3A4B 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.