#B151B7
Closest named color: Medium Orchid (#BA55D3). oklch(59.4% 0.178 325.2), rgb(177, 81, 183).
Aa
Black text reads best on this color (4.73:1).
About this color
#B151B7 is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.178 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.045 away. Black text reads best on it, at 4.73:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #B151B7 |
| RGB | rgb(177, 81, 183) |
| HSL | hsl(296, 41%, 52%) |
| OKLCH | oklch(59.4% 0.178 325.2) |
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 #B151B7 | 4.43:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #B151B7 | 4.73:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #B151B7 text on white | 4.43:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #B151B7 text on black | 4.73:1 | AA | Lc -31.4 | 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
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F3
oklch(93.5% 0.026 325.8)
-
Step 200
200
#EACFEB
oklch(88.5% 0.048 324.9)
-
Step 300
300
#DEAEE0
oklch(81% 0.087 325)
-
Step 400
400
#CC80D0
oklch(70.7% 0.14 325.2)
-
Step 500
500 (this color)
#B151B7
oklch(59.4% 0.178 325.2)
-
Step 600
600
#A83EAF
oklch(55.5% 0.193 325.2)
-
Step 700
700
#902F97
oklch(49.1% 0.18 325)
-
Step 800
800
#75297A
oklch(42.7% 0.148 325.2)
-
Step 900
900
#5F2762
oklch(37.7% 0.115 325.6)
-
Step 950
950
#38183A
oklch(27.1% 0.073 325.1)
#B151B7 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) | #4370BA | 0.176 |
| Deuteranopia (no green cones) | #637CB4 | 0.154 |
| Tritanopia (no blue cones) | #B55E7C | 0.104 |
| Achromatopsia (no color) | #787878 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B151B7
#B151B7
oklch(59.4% 0.178 325.2)
- #169830
#169830
oklch(59.3% 0.178 145.3)
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 #B151B7, closest first.
No curated palette has a color within ΔE 0.04 of #B151B7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.045
- Pinky Purple #C94CBE ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.047
- Purpley Pink #C83CB9 ΔE 0.051
- Purply #983FB2 ΔE 0.063
- Deep Lavender #8D5EB7 ΔE 0.067
- Soft Purple #A66FB5 ΔE 0.068
- Deep Lilac #966EBD ΔE 0.075
Use #B151B7 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.