#A155BF
Closest named color: Amethyst (#9B5FC0). oklch(58.3% 0.171 315.5), rgb(161, 85, 191).
Aa
White text reads best on this color (4.59:1).
About this color
#A155BF is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.171 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.023 away. White text reads best on it, at 4.59:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.56:1 |
| White text | 4.59:1 |
Values
| HEX | #A155BF |
| RGB | rgb(161, 85, 191) |
| HSL | hsl(283, 45%, 54%) |
| OKLCH | oklch(58.3% 0.171 315.5) |
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 #A155BF | 4.59:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #A155BF | 4.56:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #A155BF text on white | 4.59:1 | AA | Lc 71.5 | Content text, not long reading |
| #A155BF text on black | 4.56:1 | AA | Lc -30.2 | 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 600.
-
Step 50
50
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E4D1ED
oklch(88.5% 0.043 315)
-
Step 300
300
#D4B2E3
oklch(80.9% 0.077 315.4)
-
Step 400
400
#BE88D5
oklch(70.7% 0.123 315.4)
-
Step 500
500
#AD68C9
oklch(63.1% 0.157 315.5)
-
Step 600
600 (this color)
#A155BF
oklch(58.3% 0.171 315.5)
-
Step 700
700
#823D9D
oklch(49.1% 0.159 315.3)
-
Step 800
800
#6A337F
oklch(42.7% 0.132 315.7)
-
Step 900
900
#562E66
oklch(37.8% 0.102 315.5)
-
Step 950
950
#321B3C
oklch(26.9% 0.066 314.9)
#A155BF 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) | #3B71C2 | 0.154 |
| Deuteranopia (no green cones) | #5577BC | 0.136 |
| Tritanopia (no blue cones) | #9F6682 | 0.113 |
| Achromatopsia (no color) | #757575 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A155BF
#A155BF
oklch(58.3% 0.171 315.5)
- #489002
#489002
oklch(58.3% 0.171 135.4)
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 #A155BF, closest first.
No curated palette has a color within ΔE 0.04 of #A155BF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.023
- Deep Lavender #8D5EB7 ΔE 0.041
- Purply #983FB2 ΔE 0.051
- Medium Orchid #BA55D3 ΔE 0.054
- Deep Lilac #966EBD ΔE 0.060
- Soft Purple #A66FB5 ΔE 0.067
- Medium Purple #9370DB ΔE 0.070
- Dark Orchid #9932CC ΔE 0.071
Use #A155BF 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.