#A178D7
Closest named color: Medium Purple (#9370DB). oklch(65.2% 0.143 302.5), rgb(161, 120, 215).
Aa
Black text reads best on this color (6.18:1).
About this color
#A178D7 is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.143 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.033 away. Black text reads best on it, at 6.18:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #A178D7 |
| RGB | rgb(161, 120, 215) |
| HSL | hsl(266, 54%, 66%) |
| OKLCH | oklch(65.2% 0.143 302.5) |
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 #A178D7 | 3.39:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #A178D7 | 6.18:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #A178D7 text on white | 3.39:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #A178D7 text on black | 6.18:1 | AA | Lc -40.4 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED4EF
oklch(88.6% 0.038 302.4)
-
Step 300
300
#C9B6E7
oklch(80.8% 0.071 302.5)
-
Step 400
400
#AE8FDA
oklch(70.6% 0.112 302.6)
-
Step 500
500 (this color)
#A178D7
oklch(65.2% 0.143 302.5)
-
Step 600
600
#8658BD
oklch(55.6% 0.155 302.7)
-
Step 700
700
#7147A3
oklch(49% 0.145 302.4)
-
Step 800
800
#5C3B84
oklch(42.6% 0.12 302.5)
-
Step 900
900
#4B336A
oklch(37.6% 0.094 302.2)
-
Step 950
950
#2C1F3E
oklch(27.1% 0.058 302)
#A178D7 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) | #5E8ADA | 0.097 |
| Deuteranopia (no green cones) | #688BD5 | 0.089 |
| Tritanopia (no blue cones) | #97889D | 0.109 |
| Achromatopsia (no color) | #8B8B8B | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A178D7
#A178D7
oklch(65.2% 0.143 302.5)
- #809D28
#809D28
oklch(65.2% 0.143 122.8)
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 #A178D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Wisteria #A87DC2 ΔE 0.039
- Deep Lilac #966EBD ΔE 0.047
- Soft Purple #A66FB5 ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.054
- Light Urple #B36FF6 ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.063
- Periwinkle #8E82FE ΔE 0.064
Use #A178D7 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.