#A31D63
Closest named color: Deep Magenta (#A0025C). oklch(48.1% 0.177 354.9), rgb(163, 29, 99).
Aa
White text reads best on this color (7.20:1).
About this color
#A31D63 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.177 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Magenta (#A0025C), ΔE 0.023 away. White text reads best on it, at 7.20:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.177) |
| Temperature | warm |
| Nearest name | Deep Magenta (#A0025C) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #A31D63 |
| RGB | rgb(163, 29, 99) |
| HSL | hsl(329, 70%, 38%) |
| OKLCH | oklch(48.1% 0.177 354.9) |
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 #A31D63 | 7.20:1 | AAA | Lc -88.5 | Fine for body text |
| Black text on #A31D63 | 2.91:1 | Fails | Lc 20.5 | Dividers and decoration only |
| #A31D63 text on white | 7.20:1 | AAA | Lc 83.5 | Fine for body text |
| #A31D63 text on black | 2.91:1 | Fails | Lc -18.4 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F8E3EB
oklch(93.5% 0.025 352.5)
-
Step 200
200
#F4CDDB
oklch(88.5% 0.047 354.5)
-
Step 300
300
#EEAAC3
oklch(80.9% 0.086 355.4)
-
Step 400
400
#E27AA5
oklch(70.7% 0.137 355)
-
Step 500
500
#D6538F
oklch(63.1% 0.175 354.8)
-
Step 600
600
#C13179
oklch(55.5% 0.19 354.8)
-
Step 700
700 (this color)
#A31D63
oklch(48.1% 0.177 354.9)
-
Step 800
800
#871F53
oklch(42.7% 0.146 354.9)
-
Step 900
900
#6D2145
oklch(37.8% 0.114 354.7)
-
Step 950
950
#401428
oklch(26.9% 0.073 354.8)
#A31D63 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) | #3B4865 | 0.200 |
| Deuteranopia (no green cones) | #606060 | 0.177 |
| Tritanopia (no blue cones) | #B0043E | 0.061 |
| Achromatopsia (no color) | #575757 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31D63
#A31D63
oklch(48.1% 0.177 354.9)
- #006E5B
#006E5B
oklch(48.1% 0.09 175.2)
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 #A31D63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Magenta #A0025C ΔE 0.023
- Violet Red #A50055 ΔE 0.025
- Dark Fuchsia #9D0759 ΔE 0.026
- Red Violet #9E0168 ΔE 0.030
- Berry #990F4B ΔE 0.043
- Raspberry #B00149 ΔE 0.047
- Purple Red #990147 ΔE 0.050
- Mulberry #920A4E ΔE 0.051
Use #A31D63 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.