#AA57D9
Closest named color: Medium Orchid (#BA55D3). oklch(61.2% 0.199 311.4), rgb(170, 87, 217).
Aa
Black text reads best on this color (5.07:1).
About this color
#AA57D9 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.199 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.031 away. Black text reads best on it, at 5.07:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.199) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #AA57D9 |
| RGB | rgb(170, 87, 217) |
| HSL | hsl(278, 63%, 60%) |
| OKLCH | oklch(61.2% 0.199 311.4) |
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 #AA57D9 | 4.13:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #AA57D9 | 5.07:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #AA57D9 text on white | 4.13:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #AA57D9 text on black | 5.07:1 | AA | Lc -33.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F8
oklch(93.6% 0.028 311.3)
-
Step 200
200
#E5D0F4
oklch(88.6% 0.054 311.2)
-
Step 300
300
#D5AFEF
oklch(80.9% 0.097 311.2)
-
Step 400
400
#C082E7
oklch(70.8% 0.155 311.3)
-
Step 500
500 (this color)
#AA57D9
oklch(61.2% 0.199 311.4)
-
Step 600
600
#9B3DCD
oklch(55.5% 0.217 311.2)
-
Step 700
700
#852DB1
oklch(49% 0.201 311.6)
-
Step 800
800
#6C2890
oklch(42.8% 0.167 311.2)
-
Step 900
900
#582773
oklch(37.8% 0.13 311.4)
-
Step 950
950
#331843
oklch(27% 0.082 311.1)
#AA57D9 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) | #2679DD | 0.177 |
| Deuteranopia (no green cones) | #4C7ED6 | 0.155 |
| Tritanopia (no blue cones) | #A46F90 | 0.136 |
| Achromatopsia (no color) | #7D7D7D | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA57D9
#AA57D9
oklch(61.2% 0.199 311.4)
- #5D9700
#5D9700
oklch(61.2% 0.169 131.4)
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 #AA57D9, closest first.
No curated palette has a color within ΔE 0.04 of #AA57D9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.031
- Lighter Purple #A55AF4 ΔE 0.042
- Amethyst #9B5FC0 ΔE 0.050
- Medium Purple #9370DB ΔE 0.063
- Light Urple #B36FF6 ΔE 0.065
- Purpley #8756E4 ΔE 0.066
- Pinky Purple #C94CBE ΔE 0.071
- Deep Lavender #8D5EB7 ΔE 0.074
Use #AA57D9 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.