#A178A9
Closest named color: Dark Lilac (#9C6DA5). oklch(63% 0.086 320.8), rgb(161, 120, 169).
Aa
Black text reads best on this color (5.77:1).
About this color
#A178A9 is a medium-light, moderately saturated purple. In OKLCH its lightness is 63%, its chroma 0.086 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Lilac (#9C6DA5), ΔE 0.030 away. Black text reads best on it, at 5.77:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Lilac (#9C6DA5) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #A178A9 |
| RGB | rgb(161, 120, 169) |
| HSL | hsl(290, 22%, 57%) |
| OKLCH | oklch(63% 0.086 320.8) |
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 #A178A9 | 3.63:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #A178A9 | 5.77:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #A178A9 text on white | 3.63:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #A178A9 text on black | 5.77:1 | AA | Lc -37.8 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E0D4E3
oklch(88.4% 0.024 319.5)
-
Step 300
300
#CDB8D1
oklch(80.8% 0.042 320.8)
-
Step 400
400
#B493BA
oklch(70.6% 0.067 321.1)
-
Step 500
500 (this color)
#A178A9
oklch(63% 0.086 320.8)
-
Step 600
600
#8C6195
oklch(55.7% 0.093 320.5)
-
Step 700
700
#77507F
oklch(49.2% 0.086 320.6)
-
Step 800
800
#614167
oklch(42.6% 0.073 321.1)
-
Step 900
900
#4F3854
oklch(37.8% 0.055 320.3)
-
Step 950
950
#2E2131
oklch(27% 0.034 319.9)
#A178A9 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) | #7383AB | 0.072 |
| Deuteranopia (no green cones) | #7C88A7 | 0.068 |
| Tritanopia (no blue cones) | #A27D89 | 0.055 |
| Achromatopsia (no color) | #868686 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A178A9
#A178A9
oklch(63% 0.086 320.8)
- #6C9665
#6C9665
oklch(62.9% 0.085 141)
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 #A178A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lilac #9C6DA5 ΔE 0.030
- Heather #A484AC ΔE 0.032
- Soft Purple #A66FB5 ΔE 0.034
- Wisteria #A87DC2 ΔE 0.039
- Faded Purple #916E99 ΔE 0.043
- Dusty Lavender #AC86A8 ΔE 0.044
- Purpley Grey #947E94 ΔE 0.045
- Deep Lilac #966EBD ΔE 0.050
Use #A178A9 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.