#B151F3
Closest named color: Lighter Purple (#A55AF4). oklch(63% 0.236 308.2), rgb(177, 81, 243).
Aa
Black text reads best on this color (5.34:1).
About this color
#B151F3 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.236 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lighter Purple (#A55AF4), ΔE 0.025 away. Black text reads best on it, at 5.34:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.236) |
| Temperature | in between |
| Nearest name | Lighter Purple (#A55AF4) |
| Black text | 5.34:1 |
| White text | 3.93:1 |
Values
| HEX | #B151F3 |
| RGB | rgb(177, 81, 243) |
| HSL | hsl(276, 87%, 64%) |
| OKLCH | oklch(63% 0.236 308.2) |
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 #B151F3 | 3.93:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #B151F3 | 5.34:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #B151F3 text on white | 3.93:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #B151F3 text on black | 5.34:1 | AA | Lc -35.7 | 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
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#F0E4FC
oklch(93.5% 0.034 308.1)
-
Step 200
200
#E5CEFA
oklch(88.4% 0.064 308.6)
-
Step 300
300
#D5ACFA
oklch(80.8% 0.116 308)
-
Step 400
400
#C17CF7
oklch(70.8% 0.184 308.3)
-
Step 500
500 (this color)
#B151F3
oklch(63% 0.236 308.2)
-
Step 600
600
#9D29E2
oklch(55.6% 0.256 308.1)
-
Step 700
700
#8715C4
oklch(49.1% 0.238 308.5)
-
Step 800
800
#6D199F
oklch(42.7% 0.197 308)
-
Step 900
900
#581F7E
oklch(37.6% 0.153 308)
-
Step 950
950
#34144A
oklch(27% 0.098 308.4)
#B151F3 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) | #007DF8 | 0.198 |
| Deuteranopia (no green cones) | #2F81EF | 0.187 |
| Tritanopia (no blue cones) | #A7749C | 0.165 |
| Achromatopsia (no color) | #808080 | 0.238 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B151F3
#B151F3
oklch(63% 0.236 308.2)
- #6B9A00
#6B9A00
oklch(62.8% 0.165 128.1)
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 #B151F3, closest first.
No curated palette has a color within ΔE 0.04 of #B151F3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lighter Purple #A55AF4 ΔE 0.025
- Bright Lilac #C95EFB ΔE 0.053
- Bright Lavender #C760FF ΔE 0.053
- Medium Orchid #BA55D3 ΔE 0.054
- Light Urple #B36FF6 ΔE 0.059
- Electric Purple #AA23FF ΔE 0.064
- Neon Purple #BC13FE ΔE 0.068
- Easter Purple #C071FE ΔE 0.070
Use #B151F3 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.