#A3758B
Closest named color: Mauve (#AE7181). oklch(61.5% 0.065 348.9), rgb(163, 117, 139).
Aa
Black text reads best on this color (5.47:1).
About this color
#A3758B is a medium-dark, muted red. In OKLCH its lightness is 62%, its chroma 0.065 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.023 away. Black text reads best on it, at 5.47:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 5.47:1 |
| White text | 3.83:1 |
Values
| HEX | #A3758B |
| RGB | rgb(163, 117, 139) |
| HSL | hsl(331, 20%, 55%) |
| OKLCH | oklch(61.5% 0.065 348.9) |
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 #A3758B | 3.83:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #A3758B | 5.47:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #A3758B text on white | 3.83:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #A3758B text on black | 5.47:1 | AA | Lc -35.9 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E3D5DB
oklch(88.6% 0.017 349.5)
-
Step 300
300
#D1B9C4
oklch(80.9% 0.031 348.4)
-
Step 400
400
#BA94A6
oklch(70.7% 0.052 348.4)
-
Step 500
500 (this color)
#A3758B
oklch(61.5% 0.065 348.9)
-
Step 600
600
#93627A
oklch(55.6% 0.071 348.8)
-
Step 700
700
#7D5167
oklch(49.1% 0.066 348.4)
-
Step 800
800
#664354
oklch(42.8% 0.054 349)
-
Step 900
900
#533845
oklch(37.6% 0.043 349)
-
Step 950
950
#312128
oklch(27% 0.027 351.1)
#A3758B 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) | #797E8C | 0.068 |
| Deuteranopia (no green cones) | #83858A | 0.064 |
| Tritanopia (no blue cones) | #AA747C | 0.024 |
| Achromatopsia (no color) | #828282 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3758B
#A3758B
oklch(61.5% 0.065 348.9)
- #5C927E
#5C927E
oklch(61.6% 0.065 168.7)
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 #A3758B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.023
- Purpley Grey #947E94 ΔE 0.032
- English Lavender #9D8189 ΔE 0.034
- Reddish Grey #997570 ΔE 0.045
- Faded Purple #916E99 ΔE 0.046
- Dusky Rose #BA6873 ΔE 0.052
- Dark Lilac #9C6DA5 ΔE 0.053
- Purple Grey #866F85 ΔE 0.053
Use #A3758B 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.