#A3156B
Closest named color: Red Violet (#9E0168). oklch(47.9% 0.187 350.5), rgb(163, 21, 107).
Aa
White text reads best on this color (7.29:1).
About this color
#A3156B is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.187 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.019 away. White text reads best on it, at 7.29:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #A3156B |
| RGB | rgb(163, 21, 107) |
| HSL | hsl(324, 77%, 36%) |
| OKLCH | oklch(47.9% 0.187 350.5) |
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 #A3156B | 7.29:1 | AAA | Lc -88.6 | Fine for body text |
| Black text on #A3156B | 2.87:1 | Fails | Lc 20.4 | Dividers and decoration only |
| #A3156B text on white | 7.29:1 | AAA | Lc 83.6 | Fine for body text |
| #A3156B text on black | 2.87:1 | Fails | Lc -18.3 | 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
#F9E3EC
oklch(93.6% 0.027 350.9)
-
Step 200
200
#F4CCDD
oklch(88.4% 0.05 350.7)
-
Step 300
300
#EEA9C8
oklch(80.9% 0.09 350.7)
-
Step 400
400
#E278AC
oklch(70.7% 0.144 350.6)
-
Step 500
500
#D74F98
oklch(63.1% 0.185 350.5)
-
Step 600
600
#C22B83
oklch(55.6% 0.201 350.3)
-
Step 700
700 (this color)
#A3156B
oklch(47.9% 0.187 350.5)
-
Step 800
800
#881B5A
oklch(42.8% 0.155 350.6)
-
Step 900
900
#6D1E4A
oklch(37.6% 0.121 350.2)
-
Step 950
950
#40132B
oklch(26.9% 0.076 350.4)
#A3156B 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) | #33476D | 0.213 |
| Deuteranopia (no green cones) | #5C5F68 | 0.185 |
| Tritanopia (no blue cones) | #B00040 | 0.072 |
| Achromatopsia (no color) | #565656 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3156B
#A3156B
oklch(47.9% 0.187 350.5)
- #006E56
#006E56
oklch(47.9% 0.094 170.9)
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 #A3156B, closest first.
No curated palette has a color within ΔE 0.04 of #A3156B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.019
- Deep Magenta #A0025C ΔE 0.025
- Dark Fuchsia #9D0759 ΔE 0.031
- Violet Red #A50055 ΔE 0.035
- Berry #990F4B ΔE 0.054
- Mulberry #920A4E ΔE 0.057
- Purple Red #990147 ΔE 0.059
- Raspberry #B00149 ΔE 0.060
Use #A3156B 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.