#A155DA
Closest named color: Lighter Purple (#A55AF4). oklch(60% 0.2 307.8), rgb(161, 85, 218).
Aa
Black text reads best on this color (4.82:1).
About this color
#A155DA is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.200 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lighter Purple (#A55AF4), ΔE 0.040 away. Black text reads best on it, at 4.82:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Lighter Purple (#A55AF4) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #A155DA |
| RGB | rgb(161, 85, 218) |
| HSL | hsl(274, 64%, 59%) |
| OKLCH | oklch(60% 0.2 307.8) |
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 #A155DA | 4.35:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #A155DA | 4.82:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #A155DA text on white | 4.35:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #A155DA text on black | 4.82:1 | AA | Lc -32.1 | 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
#EFE5F9
oklch(93.6% 0.029 308.1)
-
Step 200
200
#E3D0F6
oklch(88.5% 0.055 307.8)
-
Step 300
300
#D2B0F2
oklch(80.9% 0.098 307.8)
-
Step 400
400
#BB83EB
oklch(70.6% 0.157 307.7)
-
Step 500
500 (this color)
#A155DA
oklch(60% 0.2 307.8)
-
Step 600
600
#9640D3
oklch(55.6% 0.217 307.5)
-
Step 700
700
#8030B6
oklch(49.1% 0.201 307.7)
-
Step 800
800
#682A94
oklch(42.8% 0.167 307.5)
-
Step 900
900
#552876
oklch(37.8% 0.131 307.9)
-
Step 950
950
#321845
oklch(27% 0.084 308.5)
#A155DA 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) | #1276DE | 0.172 |
| Deuteranopia (no green cones) | #3F7AD7 | 0.152 |
| Tritanopia (no blue cones) | #986F90 | 0.141 |
| Achromatopsia (no color) | #797979 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A155DA
#A155DA
oklch(60% 0.2 307.8)
- #659000
#659000
oklch(59.9% 0.156 127.7)
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 #A155DA, closest first.
No curated palette has a color within ΔE 0.04 of #A155DA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lighter Purple #A55AF4 ΔE 0.040
- Medium Orchid #BA55D3 ΔE 0.048
- Amethyst #9B5FC0 ΔE 0.048
- Purpley #8756E4 ΔE 0.049
- Medium Purple #9370DB ΔE 0.061
- Dark Orchid #9932CC ΔE 0.066
- Deep Lavender #8D5EB7 ΔE 0.067
- Purply #983FB2 ΔE 0.074
Use #A155DA 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.