#B571EF
Closest named color: Light Urple (#B36FF6). oklch(67.4% 0.188 307), rgb(181, 113, 239).
Aa
Black text reads best on this color (6.57:1).
About this color
#B571EF is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.188 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.013 away. Black text reads best on it, at 6.57:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.188) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #B571EF |
| RGB | rgb(181, 113, 239) |
| HSL | hsl(272, 80%, 69%) |
| OKLCH | oklch(67.4% 0.188 307) |
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 #B571EF | 3.19:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #B571EF | 6.57:1 | AA | Lc 45.3 | Large or bold text, headings |
| #B571EF text on white | 3.19:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #B571EF text on black | 6.57:1 | AA | Lc -42.9 | 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 400.
-
Step 50
50
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#F0E4FC
oklch(93.5% 0.034 308.1)
-
Step 200
200
#E4CEFC
oklch(88.4% 0.066 306.7)
-
Step 300
300
#D4ACFC
oklch(80.8% 0.118 306.8)
-
Step 400
400 (this color)
#B571EF
oklch(67.4% 0.188 307)
-
Step 500
500
#B051F7
oklch(63.1% 0.239 307)
-
Step 600
600
#9C26E6
oklch(55.6% 0.261 307)
-
Step 700
700
#8512C8
oklch(49% 0.243 306.8)
-
Step 800
800
#6C17A2
oklch(42.7% 0.201 306.7)
-
Step 900
900
#581E80
oklch(37.7% 0.157 307.3)
-
Step 950
950
#33144B
oklch(27% 0.099 306.8)
#B571EF 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) | #498DF3 | 0.149 |
| Deuteranopia (no green cones) | #5F91EC | 0.135 |
| Tritanopia (no blue cones) | #AC88A5 | 0.137 |
| Achromatopsia (no color) | #909090 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B571EF
#B571EF
oklch(67.4% 0.188 307)
- #79A900
#79A900
oklch(67.5% 0.175 127.2)
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 #B571EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.013
- Light Purple #BF77F6 ΔE 0.024
- Easter Purple #C071FE ΔE 0.029
- Bright Lavender #C760FF ΔE 0.050
- Bright Lilac #C95EFB ΔE 0.052
- Lighter Purple #A55AF4 ΔE 0.059
- Medium Purple #9370DB ΔE 0.064
- Medium Orchid #BA55D3 ΔE 0.065
Use #B571EF 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.