#B31BC5
Closest named color: Vibrant Purple (#AD03DE). oklch(55.8% 0.249 323), rgb(179, 27, 197).
Aa
White text reads best on this color (5.41:1).
About this color
#B31BC5 is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.249 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Vibrant Purple (#AD03DE), ΔE 0.044 away. White text reads best on it, at 5.41:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.249) |
| Temperature | in between |
| Nearest name | Vibrant Purple (#AD03DE) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #B31BC5 |
| RGB | rgb(179, 27, 197) |
| HSL | hsl(294, 76%, 44%) |
| OKLCH | oklch(55.8% 0.249 323) |
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 #B31BC5 | 5.41:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #B31BC5 | 3.87:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #B31BC5 text on white | 5.41:1 | AA | Lc 75.2 | Fine for body text |
| #B31BC5 text on black | 3.87:1 | AA large text | Lc -26.5 | Dividers and decoration only |
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 600.
-
Step 50
50
#FBF2FB
oklch(97.1% 0.015 325.7)
-
Step 100
100
#F5E3F7
oklch(93.6% 0.033 322.8)
-
Step 200
200
#EECCF1
oklch(88.5% 0.062 323.5)
-
Step 300
300
#E4A8EB
oklch(80.9% 0.113 323)
-
Step 400
400
#D475E0
oklch(70.7% 0.179 323)
-
Step 500
500
#C748D7
oklch(63% 0.229 323)
-
Step 600
600 (this color)
#B31BC5
oklch(55.8% 0.249 323)
-
Step 700
700
#9901AA
oklch(49.1% 0.232 322.8)
-
Step 800
800
#7C0E89
oklch(42.6% 0.191 323)
-
Step 900
900
#64196E
oklch(37.6% 0.149 322.7)
-
Step 950
950
#3B1140
oklch(26.9% 0.094 323.3)
#B31BC5 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) | #005FC9 | 0.246 |
| Deuteranopia (no green cones) | #3E6FC1 | 0.223 |
| Tritanopia (no blue cones) | #B64475 | 0.148 |
| Achromatopsia (no color) | #6A6A6A | 0.251 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B31BC5
#B31BC5
oklch(55.8% 0.249 323)
- #008D0C
#008D0C
oklch(55.8% 0.187 143)
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 #B31BC5, closest first.
No curated palette has a color within ΔE 0.04 of #B31BC5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vibrant Purple #AD03DE ΔE 0.044
- Dark Orchid #9932CC ΔE 0.055
- Purpley Pink #C83CB9 ΔE 0.067
- Purply #983FB2 ΔE 0.069
- Dark Violet #9400D3 ΔE 0.073
- Purple Pink #D725DE ΔE 0.080
- Hot Purple #CB00F5 ΔE 0.082
- Medium Orchid #BA55D3 ΔE 0.084
Use #B31BC5 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.