#B155C7
Closest named color: Medium Orchid (#BA55D3). oklch(60.8% 0.187 319.5), rgb(177, 85, 199).
Aa
Black text reads best on this color (4.99:1).
About this color
#B155C7 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.187 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.024 away. Black text reads best on it, at 4.99:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #B155C7 |
| RGB | rgb(177, 85, 199) |
| HSL | hsl(288, 50%, 56%) |
| OKLCH | oklch(60.8% 0.187 319.5) |
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 #B155C7 | 4.20:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #B155C7 | 4.99:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #B155C7 text on white | 4.20:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #B155C7 text on black | 4.99:1 | AA | Lc -33.2 | 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 500.
-
Step 50
50
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F2E5F5
oklch(93.7% 0.025 319.9)
-
Step 200
200
#E8CFEF
oklch(88.5% 0.051 318.8)
-
Step 300
300
#DBAEE6
oklch(80.9% 0.091 319.6)
-
Step 400
400
#C881D9
oklch(70.8% 0.145 319.7)
-
Step 500
500 (this color)
#B155C7
oklch(60.8% 0.187 319.5)
-
Step 600
600
#A43EBC
oklch(55.7% 0.203 319.4)
-
Step 700
700
#8C2EA2
oklch(49.1% 0.189 319.3)
-
Step 800
800
#722883
oklch(42.7% 0.156 319.6)
-
Step 900
900
#5C2769
oklch(37.7% 0.121 319.3)
-
Step 950
950
#36183E
oklch(27.1% 0.077 318.8)
#B155C7 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) | #3C75CB | 0.177 |
| Deuteranopia (no green cones) | #5D7FC4 | 0.155 |
| Tritanopia (no blue cones) | #B26786 | 0.118 |
| Achromatopsia (no color) | #7B7B7B | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B155C7
#B155C7
oklch(60.8% 0.187 319.5)
- #389B12
#389B12
oklch(60.7% 0.186 139.5)
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 #B155C7, closest first.
No curated palette has a color within ΔE 0.04 of #B155C7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.024
- Amethyst #9B5FC0 ΔE 0.044
- Pinky Purple #C94CBE ΔE 0.047
- Purpley Pink #C83CB9 ΔE 0.057
- Deep Lavender #8D5EB7 ΔE 0.070
- Soft Purple #A66FB5 ΔE 0.070
- Lighter Purple #A55AF4 ΔE 0.072
- Purply #983FB2 ΔE 0.072
Use #B155C7 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.