#B155CA
Closest named color: Medium Orchid (#BA55D3). oklch(60.9% 0.19 318.6), rgb(177, 85, 202).
Aa
Black text reads best on this color (5.02:1).
About this color
#B155CA is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.190 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.021 away. Black text reads best on it, at 5.02:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.02:1 |
| White text | 4.18:1 |
Values
| HEX | #B155CA |
| RGB | rgb(177, 85, 202) |
| HSL | hsl(287, 52%, 56%) |
| OKLCH | oklch(60.9% 0.19 318.6) |
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 #B155CA | 4.18:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #B155CA | 5.02:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #B155CA text on white | 4.18:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #B155CA text on black | 5.02:1 | AA | Lc -33.4 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F2E5F6
oklch(93.7% 0.027 318.2)
-
Step 200
200
#E8CFEF
oklch(88.5% 0.051 318.8)
-
Step 300
300
#DAAEE7
oklch(80.9% 0.092 318.4)
-
Step 400
400
#C780DB
oklch(70.6% 0.148 318.6)
-
Step 500
500 (this color)
#B155CA
oklch(60.9% 0.19 318.6)
-
Step 600
600
#A33DBE
oklch(55.6% 0.205 318.5)
-
Step 700
700
#8C2DA4
oklch(49.1% 0.192 318.7)
-
Step 800
800
#722885
oklch(42.8% 0.158 318.7)
-
Step 900
900
#5C266B
oklch(37.7% 0.124 318.3)
-
Step 950
950
#36173E
oklch(26.9% 0.079 319)
#B155CA 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) | #3976CE | 0.179 |
| Deuteranopia (no green cones) | #5B7FC7 | 0.157 |
| Tritanopia (no blue cones) | #B16888 | 0.120 |
| Achromatopsia (no color) | #7C7C7C | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B155CA
#B155CA
oklch(60.9% 0.19 318.6)
- #3B9B02
#3B9B02
oklch(60.8% 0.189 138.5)
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 #B155CA, closest first.
No curated palette has a color within ΔE 0.04 of #B155CA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.021
- Amethyst #9B5FC0 ΔE 0.046
- Pinky Purple #C94CBE ΔE 0.049
- Purpley Pink #C83CB9 ΔE 0.059
- Lighter Purple #A55AF4 ΔE 0.068
- Deep Lavender #8D5EB7 ΔE 0.072
- Soft Purple #A66FB5 ΔE 0.073
- Purply #983FB2 ΔE 0.074
Use #B155CA 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.