#B173DA
Closest named color: Light Urple (#B36FF6). oklch(66.1% 0.159 310.5), rgb(177, 115, 218).
Aa
Black text reads best on this color (6.33:1).
About this color
#B173DA is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.159 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.044 away. Black text reads best on it, at 6.33:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.33:1 |
| White text | 3.31:1 |
Values
| HEX | #B173DA |
| RGB | rgb(177, 115, 218) |
| HSL | hsl(276, 58%, 65%) |
| OKLCH | oklch(66.1% 0.159 310.5) |
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 #B173DA | 3.31:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #B173DA | 6.33:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #B173DA text on white | 3.31:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #B173DA text on black | 6.33:1 | AA | Lc -41.4 | 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
#F8F4FB
oklch(97.2% 0.01 311.2)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E2D2EF
oklch(88.6% 0.043 310.1)
-
Step 300
300
#D0B3E7
oklch(80.9% 0.078 309.9)
-
Step 400
400
#B989DA
oklch(70.6% 0.125 310.7)
-
Step 500
500 (this color)
#B173DA
oklch(66.1% 0.159 310.5)
-
Step 600
600
#934FBD
oklch(55.7% 0.173 310.5)
-
Step 700
700
#7D3FA3
oklch(49.2% 0.161 310.4)
-
Step 800
800
#663484
oklch(42.7% 0.134 310.8)
-
Step 900
900
#532F6A
oklch(37.8% 0.104 310.5)
-
Step 950
950
#301C3E
oklch(27% 0.066 309.8)
#B173DA 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) | #5B8ADE | 0.127 |
| Deuteranopia (no green cones) | #6C8ED7 | 0.115 |
| Tritanopia (no blue cones) | #AC839C | 0.112 |
| Achromatopsia (no color) | #8D8D8D | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B173DA
#B173DA
oklch(66.1% 0.159 310.5)
- #70A52B
#70A52B
oklch(66.1% 0.159 130.5)
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 #B173DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.044
- Light Purple #BF77F6 ΔE 0.047
- Wisteria #A87DC2 ΔE 0.050
- Medium Purple #9370DB ΔE 0.051
- Soft Purple #A66FB5 ΔE 0.058
- Easter Purple #C071FE ΔE 0.059
- Medium Orchid #BA55D3 ΔE 0.062
- Deep Lilac #966EBD ΔE 0.064
Use #B173DA 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.