#B543CB
Closest named color: Medium Orchid (#BA55D3). oklch(59.4% 0.217 320.8), rgb(181, 67, 203).
Aa
Black text reads best on this color (4.62:1).
About this color
#B543CB is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.217 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.035 away. Black text reads best on it, at 4.62:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.217) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #B543CB |
| RGB | rgb(181, 67, 203) |
| HSL | hsl(290, 57%, 53%) |
| OKLCH | oklch(59.4% 0.217 320.8) |
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 #B543CB | 4.53:1 | AA | Lc -76.1 | Fine for body text |
| Black text on #B543CB | 4.62:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #B543CB text on white | 4.53:1 | AA | Lc 70.6 | Content text, not long reading |
| #B543CB text on black | 4.62:1 | AA | Lc -31.1 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F4E4F7
oklch(93.7% 0.03 320.9)
-
Step 200
200
#EBCDF1
oklch(88.4% 0.058 320.6)
-
Step 300
300
#E0AAEB
oklch(80.9% 0.107 320.6)
-
Step 400
400
#CF79E0
oklch(70.7% 0.17 320.8)
-
Step 500
500 (this color)
#B543CB
oklch(59.4% 0.217 320.8)
-
Step 600
600
#AD29C5
oklch(55.7% 0.237 320.8)
-
Step 700
700
#9418AA
oklch(49.1% 0.219 320.7)
-
Step 800
800
#78198A
oklch(42.7% 0.182 320.5)
-
Step 900
900
#611E6E
oklch(37.6% 0.142 320.7)
-
Step 950
950
#391440
oklch(27% 0.088 321)
#B543CB 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) | #146ECF | 0.219 |
| Deuteranopia (no green cones) | #517AC8 | 0.186 |
| Tritanopia (no blue cones) | #B65B82 | 0.133 |
| Achromatopsia (no color) | #767676 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B543CB
#B543CB
oklch(59.4% 0.217 320.8)
- #259800
#259800
oklch(59.4% 0.194 140.7)
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 #B543CB, closest first.
No curated palette has a color within ΔE 0.04 of #B543CB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.035
- Purpley Pink #C83CB9 ΔE 0.047
- Pinky Purple #C94CBE ΔE 0.051
- Dark Orchid #9932CC ΔE 0.065
- Purply #983FB2 ΔE 0.066
- Amethyst #9B5FC0 ΔE 0.070
- Vibrant Purple #AD03DE ΔE 0.071
- Purple Pink #D725DE ΔE 0.072
Use #B543CB 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.