#A3437D
Closest named color: Light Plum (#9D5783). oklch(52.9% 0.143 345.8), rgb(163, 67, 125).
Aa
White text reads best on this color (5.74:1).
About this color
#A3437D is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.143 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Light Plum (#9D5783), ΔE 0.043 away. White text reads best on it, at 5.74:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Light Plum (#9D5783) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #A3437D |
| RGB | rgb(163, 67, 125) |
| HSL | hsl(324, 42%, 45%) |
| OKLCH | oklch(52.9% 0.143 345.8) |
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 #A3437D | 5.74:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #A3437D | 3.65:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #A3437D text on white | 5.74:1 | AA | Lc 78.1 | Fine for body text |
| #A3437D text on black | 3.65:1 | AA large text | Lc -23.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F4E5EC
oklch(93.6% 0.019 347.4)
-
Step 200
200
#ECD0DE
oklch(88.5% 0.036 346.2)
-
Step 300
300
#E0B0CA
oklch(80.8% 0.065 344.9)
-
Step 400
400
#CF86AE
oklch(70.7% 0.103 346)
-
Step 500
500
#C1669A
oklch(63.1% 0.131 346.2)
-
Step 600
600 (this color)
#A3437D
oklch(52.9% 0.143 345.8)
-
Step 700
700
#933C71
oklch(49.1% 0.133 345.5)
-
Step 800
800
#78325C
oklch(42.8% 0.111 345.8)
-
Step 900
900
#612D4B
oklch(37.8% 0.085 346.3)
-
Step 950
950
#391B2C
oklch(27.1% 0.054 346.2)
#A3437D 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) | #4C5C7F | 0.155 |
| Deuteranopia (no green cones) | #676C7B | 0.139 |
| Tritanopia (no blue cones) | #AD425A | 0.058 |
| Achromatopsia (no color) | #666666 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3437D
#A3437D
oklch(52.9% 0.143 345.8)
- #007F5C
#007F5C
oklch(52.9% 0.11 165.6)
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 #A3437D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Plum #9D5783 ΔE 0.043
- Light Eggplant #894585 ΔE 0.052
- Light Burgundy #A8415B ΔE 0.054
- Light Maroon #A24857 ΔE 0.064
- Warm Purple #952E8F ΔE 0.066
- Dark Rose #B5485D ΔE 0.067
- Dusky Purple #895B7B ΔE 0.070
- Dull Purple #84597E ΔE 0.071
Use #A3437D 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.