#A31561
Closest named color: Deep Magenta (#A0025C). oklch(47.5% 0.182 355.2), rgb(163, 21, 97).
Aa
White text reads best on this color (7.40:1).
About this color
#A31561 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.182 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Magenta (#A0025C), ΔE 0.015 away. White text reads best on it, at 7.40:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Deep Magenta (#A0025C) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #A31561 |
| RGB | rgb(163, 21, 97) |
| HSL | hsl(328, 77%, 36%) |
| OKLCH | oklch(47.5% 0.182 355.2) |
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 #A31561 | 7.40:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #A31561 | 2.83:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #A31561 text on white | 7.40:1 | AAA | Lc 84.0 | Fine for body text |
| #A31561 text on black | 2.83:1 | Fails | Lc -18.0 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#F9E3EA
oklch(93.6% 0.026 356.3)
-
Step 200
200
#F5CCDA
oklch(88.4% 0.049 355.6)
-
Step 300
300
#EFA9C3
oklch(80.9% 0.088 355.2)
-
Step 400
400
#E478A5
oklch(70.7% 0.142 355)
-
Step 500
500
#D8508E
oklch(63% 0.18 355.3)
-
Step 600
600
#C42D79
oklch(55.7% 0.196 355.2)
-
Step 700
700 (this color)
#A31561
oklch(47.5% 0.182 355.2)
-
Step 800
800
#891C53
oklch(42.8% 0.151 355.2)
-
Step 900
900
#6E1F44
oklch(37.7% 0.117 355.5)
-
Step 950
950
#411428
oklch(27.1% 0.074 355.6)
#A31561 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) | #384563 | 0.207 |
| Deuteranopia (no green cones) | #5F5F5E | 0.183 |
| Tritanopia (no blue cones) | #B1003B | 0.064 |
| Achromatopsia (no color) | #555555 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31561
#A31561
oklch(47.5% 0.182 355.2)
- #006C5A
#006C5A
oklch(47.5% 0.089 175.9)
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 #A31561, closest first.
No curated palette has a color within ΔE 0.04 of #A31561.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Magenta #A0025C ΔE 0.015
- Violet Red #A50055 ΔE 0.020
- Dark Fuchsia #9D0759 ΔE 0.020
- Red Violet #9E0168 ΔE 0.025
- Berry #990F4B ΔE 0.039
- Purple Red #990147 ΔE 0.045
- Raspberry #B00149 ΔE 0.046
- Mulberry #920A4E ΔE 0.047
Use #A31561 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.