#B551BE
Closest named color: Medium Orchid (#BA55D3). oklch(60.3% 0.186 324.3), rgb(181, 81, 190).
Aa
Black text reads best on this color (4.88:1).
About this color
#B551BE is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.186 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.033 away. Black text reads best on it, at 4.88:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #B551BE |
| RGB | rgb(181, 81, 190) |
| HSL | hsl(295, 46%, 53%) |
| OKLCH | oklch(60.3% 0.186 324.3) |
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 #B551BE | 4.29:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #B551BE | 4.88:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #B551BE text on white | 4.29:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #B551BE text on black | 4.88:1 | AA | Lc -32.5 | 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
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F4
oklch(93.5% 0.027 323.9)
-
Step 200
200
#EBCEEC
oklch(88.5% 0.051 325)
-
Step 300
300
#DFADE2
oklch(81% 0.091 324.5)
-
Step 400
400
#CD7FD3
oklch(70.8% 0.145 324.4)
-
Step 500
500 (this color)
#B551BE
oklch(60.3% 0.186 324.3)
-
Step 600
600
#AA3BB4
oklch(55.7% 0.202 324.3)
-
Step 700
700
#912B9B
oklch(49.1% 0.189 324.1)
-
Step 800
800
#76267D
oklch(42.7% 0.155 324.4)
-
Step 900
900
#602565
oklch(37.8% 0.122 324.5)
-
Step 950
950
#38173B
oklch(27% 0.076 324.2)
#B551BE 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) | #4072C1 | 0.184 |
| Deuteranopia (no green cones) | #627EBB | 0.161 |
| Tritanopia (no blue cones) | #B86080 | 0.110 |
| Achromatopsia (no color) | #7A7A7A | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B551BE
#B551BE
oklch(60.3% 0.186 324.3)
- #169C29
#169C29
oklch(60.4% 0.187 144.3)
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 #B551BE, closest first.
No curated palette has a color within ΔE 0.04 of #B551BE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.033
- Pinky Purple #C94CBE ΔE 0.037
- Purpley Pink #C83CB9 ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.052
- Purply #983FB2 ΔE 0.070
- Soft Purple #A66FB5 ΔE 0.072
- Deep Lavender #8D5EB7 ΔE 0.075
- Deep Lilac #966EBD ΔE 0.079
Use #B551BE 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.