#B571E5
Closest named color: Light Urple (#B36FF6). oklch(66.8% 0.177 309.5), rgb(181, 113, 229).
Aa
Black text reads best on this color (6.45:1).
About this color
#B571E5 is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.177 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.027 away. Black text reads best on it, at 6.45:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.45:1 |
| White text | 3.25:1 |
Values
| HEX | #B571E5 |
| RGB | rgb(181, 113, 229) |
| HSL | hsl(275, 69%, 67%) |
| OKLCH | oklch(66.8% 0.177 309.5) |
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 #B571E5 | 3.25:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #B571E5 | 6.45:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #B571E5 text on white | 3.25:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #B571E5 text on black | 6.45:1 | AA | Lc -42.2 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E3D1F2
oklch(88.5% 0.049 309.7)
-
Step 300
300
#D1B2EB
oklch(80.9% 0.085 309.2)
-
Step 400
400
#BA87E1
oklch(70.7% 0.138 309.3)
-
Step 500
500 (this color)
#B571E5
oklch(66.8% 0.177 309.5)
-
Step 600
600
#9549C6
oklch(55.7% 0.192 309.5)
-
Step 700
700
#7F39AB
oklch(49.2% 0.179 309.6)
-
Step 800
800
#67308A
oklch(42.7% 0.148 309.7)
-
Step 900
900
#542C6F
oklch(37.8% 0.116 309.5)
-
Step 950
950
#311B41
oklch(27.1% 0.072 309.1)
#B571E5 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) | #528CE9 | 0.143 |
| Deuteranopia (no green cones) | #6690E2 | 0.129 |
| Tritanopia (no blue cones) | #AF85A1 | 0.125 |
| Achromatopsia (no color) | #8F8F8F | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B571E5
#B571E5
oklch(66.8% 0.177 309.5)
- #71A808
#71A808
oklch(66.8% 0.176 129.4)
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 #B571E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.027
- Light Purple #BF77F6 ΔE 0.032
- Easter Purple #C071FE ΔE 0.041
- Medium Purple #9370DB ΔE 0.059
- Medium Orchid #BA55D3 ΔE 0.059
- Bright Lavender #C760FF ΔE 0.060
- Bright Lilac #C95EFB ΔE 0.060
- Lighter Purple #A55AF4 ΔE 0.065
Use #B571E5 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.