#A155E4
Closest named color: Lighter Purple (#A55AF4). oklch(60.6% 0.211 305.4), rgb(161, 85, 228).
Aa
Black text reads best on this color (4.93:1).
About this color
#A155E4 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.211 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lighter Purple (#A55AF4), ΔE 0.026 away. Black text reads best on it, at 4.93:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.211) |
| Temperature | in between |
| Nearest name | Lighter Purple (#A55AF4) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #A155E4 |
| RGB | rgb(161, 85, 228) |
| HSL | hsl(272, 73%, 61%) |
| OKLCH | oklch(60.6% 0.211 305.4) |
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 #A155E4 | 4.25:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #A155E4 | 4.93:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #A155E4 text on white | 4.25:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #A155E4 text on black | 4.93:1 | AA | Lc -32.8 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E2D0F8
oklch(88.5% 0.057 305.6)
-
Step 300
300
#D0B0F6
oklch(80.9% 0.102 305.1)
-
Step 400
400
#B982F2
oklch(70.6% 0.166 305.2)
-
Step 500
500 (this color)
#A155E4
oklch(60.6% 0.211 305.4)
-
Step 600
600
#943CDB
oklch(55.6% 0.229 305.2)
-
Step 700
700
#7F2CBE
oklch(49.2% 0.213 305.5)
-
Step 800
800
#67279A
oklch(42.7% 0.177 305.4)
-
Step 900
900
#54277A
oklch(37.8% 0.137 305.7)
-
Step 950
950
#311848
oklch(27.1% 0.088 305.3)
#A155E4 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) | #0078E8 | 0.174 |
| Deuteranopia (no green cones) | #327BE1 | 0.160 |
| Tritanopia (no blue cones) | #957395 | 0.152 |
| Achromatopsia (no color) | #7B7B7B | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A155E4
#A155E4
oklch(60.6% 0.211 305.4)
- #6C9100
#6C9100
oklch(60.6% 0.154 125.6)
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 #A155E4, closest first.
No curated palette has a color within ΔE 0.04 of #A155E4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lighter Purple #A55AF4 ΔE 0.026
- Purpley #8756E4 ΔE 0.046
- Medium Orchid #BA55D3 ΔE 0.054
- Amethyst #9B5FC0 ΔE 0.061
- Medium Purple #9370DB ΔE 0.063
- Light Urple #B36FF6 ΔE 0.068
- Dark Orchid #9932CC ΔE 0.071
- Medium Slate Blue #7B68EE ΔE 0.072
Use #A155E4 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.