#B578CA
Closest named color: Wisteria (#A87DC2). oklch(66.6% 0.134 317.1), rgb(181, 120, 202).
Aa
Black text reads best on this color (6.50:1).
About this color
#B578CA is a medium-light, moderately saturated purple. In OKLCH its lightness is 67%, its chroma 0.134 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Wisteria (#A87DC2), ΔE 0.028 away. Black text reads best on it, at 6.50:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Wisteria (#A87DC2) |
| Black text | 6.50:1 |
| White text | 3.22:1 |
Values
| HEX | #B578CA |
| RGB | rgb(181, 120, 202) |
| HSL | hsl(285, 44%, 63%) |
| OKLCH | oklch(66.6% 0.134 317.1) |
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 #B578CA | 3.22:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #B578CA | 6.50:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #B578CA text on white | 3.22:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #B578CA text on black | 6.50:1 | AA | Lc -42.4 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F2
oklch(93.5% 0.019 317.7)
-
Step 200
200
#E3D2E9
oklch(88.4% 0.036 317.3)
-
Step 300
300
#D2B4DD
oklch(80.9% 0.065 316.9)
-
Step 400
400
#BB8CCC
oklch(70.7% 0.104 316.9)
-
Step 500
500 (this color)
#B578CA
oklch(66.6% 0.134 317.1)
-
Step 600
600
#9554AB
oklch(55.6% 0.146 317)
-
Step 700
700
#7F4493
oklch(49.2% 0.136 316.9)
-
Step 800
800
#673877
oklch(42.6% 0.113 317)
-
Step 900
900
#543160
oklch(37.7% 0.088 317)
-
Step 950
950
#311D38
oklch(26.9% 0.055 317)
#B578CA 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) | #6B8BCD | 0.114 |
| Deuteranopia (no green cones) | #7B91C8 | 0.103 |
| Tritanopia (no blue cones) | #B58397 | 0.090 |
| Achromatopsia (no color) | #8F8F8F | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B578CA
#B578CA
oklch(66.6% 0.134 317.1)
- #6AA751
#6AA751
oklch(66.7% 0.135 137.3)
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 #B578CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Wisteria #A87DC2 ΔE 0.028
- Soft Purple #A66FB5 ΔE 0.044
- Pale Purple #B790D4 ΔE 0.058
- Deep Lilac #966EBD ΔE 0.062
- Heather #A484AC ΔE 0.066
- Orchid #DA70D6 ΔE 0.067
- Light Purple #BF77F6 ΔE 0.068
- Medium Purple #9370DB ΔE 0.069
Use #B578CA 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.