#A31D70
Closest named color: Red Violet (#9E0168). oklch(48.6% 0.183 348.6), rgb(163, 29, 112).
Aa
White text reads best on this color (7.07:1).
About this color
#A31D70 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.183 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.026 away. White text reads best on it, at 7.07:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #A31D70 |
| RGB | rgb(163, 29, 112) |
| HSL | hsl(323, 70%, 38%) |
| OKLCH | oklch(48.6% 0.183 348.6) |
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 #A31D70 | 7.07:1 | AAA | Lc -88.1 | Fine for body text |
| Black text on #A31D70 | 2.96:1 | Fails | Lc 21.0 | Dividers and decoration only |
| #A31D70 text on white | 7.07:1 | AAA | Lc 83.0 | Fine for body text |
| #A31D70 text on black | 2.96:1 | Fails | Lc -18.9 | 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
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F3CDDE
oklch(88.5% 0.048 349.4)
-
Step 300
300
#EDA9CA
oklch(80.9% 0.09 348.7)
-
Step 400
400
#E079AF
oklch(70.7% 0.142 348.6)
-
Step 500
500
#D4519B
oklch(63% 0.182 348.6)
-
Step 600
600
#BF2F86
oklch(55.5% 0.197 348.5)
-
Step 700
700 (this color)
#A31D70
oklch(48.6% 0.183 348.6)
-
Step 800
800
#861D5C
oklch(42.7% 0.152 348.9)
-
Step 900
900
#6C204C
oklch(37.8% 0.118 348.5)
-
Step 950
950
#40142C
oklch(27.1% 0.075 349.5)
#A31D70 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) | #354A72 | 0.207 |
| Deuteranopia (no green cones) | #5C616D | 0.182 |
| Tritanopia (no blue cones) | #AF1345 | 0.072 |
| Achromatopsia (no color) | #585858 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31D70
#A31D70
oklch(48.6% 0.183 348.6)
- #007155
#007155
oklch(48.7% 0.098 168.2)
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 #A31D70, closest first.
No curated palette has a color within ΔE 0.04 of #A31D70.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.026
- Deep Magenta #A0025C ΔE 0.034
- Dark Fuchsia #9D0759 ΔE 0.039
- Violet Red #A50055 ΔE 0.043
- Warm Purple #952E8F ΔE 0.058
- Berry #990F4B ΔE 0.061
- Mulberry #920A4E ΔE 0.064
- Raspberry #B00149 ΔE 0.065
Use #A31D70 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.