#A3237C
Closest named color: Red Violet (#9E0168). oklch(49.5% 0.185 343.5), rgb(163, 35, 124).
Aa
White text reads best on this color (6.79:1).
About this color
#A3237C is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.185 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.040 away. White text reads best on it, at 6.79:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #A3237C |
| RGB | rgb(163, 35, 124) |
| HSL | hsl(318, 65%, 39%) |
| OKLCH | oklch(49.5% 0.185 343.5) |
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 #A3237C | 6.79:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #A3237C | 3.08:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #A3237C text on white | 6.79:1 | AA | Lc 82.1 | Fine for body text |
| #A3237C text on black | 3.08:1 | AA large text | Lc -19.8 | 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 700.
-
Step 50
50
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F7E3EE
oklch(93.5% 0.026 343.3)
-
Step 200
200
#F2CDE1
oklch(88.5% 0.049 344.4)
-
Step 300
300
#EAAACF
oklch(80.9% 0.089 343.7)
-
Step 400
400
#DD7AB7
oklch(70.7% 0.142 343.6)
-
Step 500
500
#D153A5
oklch(63.2% 0.182 343.7)
-
Step 600
600
#BC3190
oklch(55.6% 0.198 343.6)
-
Step 700
700 (this color)
#A3237C
oklch(49.5% 0.185 343.5)
-
Step 800
800
#831F64
oklch(42.7% 0.153 343.3)
-
Step 900
900
#6A2151
oklch(37.8% 0.118 343.9)
-
Step 950
950
#3E1430
oklch(26.9% 0.076 342.7)
#A3237C 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) | #324D7E | 0.206 |
| Deuteranopia (no green cones) | #5A6279 | 0.178 |
| Tritanopia (no blue cones) | #AE234D | 0.081 |
| Achromatopsia (no color) | #5B5B5B | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3237C
#A3237C
oklch(49.5% 0.185 343.5)
- #007451
#007451
oklch(49.5% 0.106 163.8)
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 #A3237C, closest first.
No curated palette has a color within ΔE 0.04 of #A3237C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.040
- Warm Purple #952E8F ΔE 0.042
- Deep Magenta #A0025C ΔE 0.053
- Dark Fuchsia #9D0759 ΔE 0.058
- Violet Red #A50055 ΔE 0.062
- Light Eggplant #894585 ΔE 0.070
- Medium Violet Red #C71585 ΔE 0.072
- Dark Magenta #8B008B ΔE 0.074
Use #A3237C 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.