#A128DD
Closest named color: Vibrant Purple (#AD03DE). oklch(55.7% 0.253 310.6), rgb(161, 40, 221).
Aa
White text reads best on this color (5.43:1).
About this color
#A128DD is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.253 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Vibrant Purple (#AD03DE), ΔE 0.030 away. White text reads best on it, at 5.43:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.253) |
| Temperature | in between |
| Nearest name | Vibrant Purple (#AD03DE) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #A128DD |
| RGB | rgb(161, 40, 221) |
| HSL | hsl(280, 73%, 51%) |
| OKLCH | oklch(55.7% 0.253 310.6) |
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 #A128DD | 5.43:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #A128DD | 3.86:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #A128DD text on white | 5.43:1 | AA | Lc 75.6 | Fine for body text |
| #A128DD text on black | 3.86:1 | AA large text | Lc -26.1 | 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 600.
-
Step 50
50
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F1E4FB
oklch(93.6% 0.034 310.7)
-
Step 200
200
#E6CEF9
oklch(88.5% 0.063 310.1)
-
Step 300
300
#D8ACF7
oklch(81% 0.113 310.7)
-
Step 400
400
#C47BF3
oklch(70.7% 0.182 310.6)
-
Step 500
500
#B551EF
oklch(63.2% 0.233 310.5)
-
Step 600
600 (this color)
#A128DD
oklch(55.7% 0.253 310.6)
-
Step 700
700
#8A15C0
oklch(49.2% 0.236 310.6)
-
Step 800
800
#70189B
oklch(42.7% 0.195 310.7)
-
Step 900
900
#5A1E7B
oklch(37.6% 0.152 310.5)
-
Step 950
950
#351448
oklch(27% 0.096 310.8)
#A128DD 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) | #0065E2 | 0.206 |
| Deuteranopia (no green cones) | #006BD9 | 0.210 |
| Tritanopia (no blue cones) | #995885 | 0.170 |
| Achromatopsia (no color) | #6A6A6A | 0.255 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A128DD
#A128DD
oklch(55.7% 0.253 310.6)
- #538400
#538400
oklch(55.7% 0.152 130.8)
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 #A128DD, closest first.
No curated palette has a color within ΔE 0.04 of #A128DD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vibrant Purple #AD03DE ΔE 0.030
- Dark Orchid #9932CC ΔE 0.030
- Dark Violet #9400D3 ΔE 0.042
- Blue Violet #8A2BE2 ΔE 0.047
- Bright Violet #AD0AFD ΔE 0.053
- Electric Purple #AA23FF ΔE 0.053
- Vivid Purple #9900FA ΔE 0.053
- Neon Purple #BC13FE ΔE 0.068
Use #A128DD 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.