#B303CC
Closest named color: Vibrant Purple (#AD03DE). oklch(55.5% 0.263 321.4), rgb(179, 3, 204).
Aa
White text reads best on this color (5.52:1).
About this color
#B303CC is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.263 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Vibrant Purple (#AD03DE), ΔE 0.032 away. White text reads best on it, at 5.52:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.263) |
| Temperature | in between |
| Nearest name | Vibrant Purple (#AD03DE) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #B303CC |
| RGB | rgb(179, 3, 204) |
| HSL | hsl(293, 97%, 41%) |
| OKLCH | oklch(55.5% 0.263 321.4) |
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 #B303CC | 5.52:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #B303CC | 3.80:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #B303CC text on white | 5.52:1 | AA | Lc 75.2 | Fine for body text |
| #B303CC text on black | 3.80:1 | AA large text | Lc -26.6 | 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
#FBF2FC
oklch(97.1% 0.016 322.7)
-
Step 100
100
#F5E3F8
oklch(93.6% 0.034 321.4)
-
Step 200
200
#EECBF4
oklch(88.4% 0.067 321.3)
-
Step 300
300
#E4A7EF
oklch(80.9% 0.118 321.2)
-
Step 400
400
#D572E6
oklch(70.6% 0.19 321.6)
-
Step 500
500
#C843DF
oklch(63.2% 0.242 321.4)
-
Step 600
600 (this color)
#B303CC
oklch(55.5% 0.263 321.4)
-
Step 700
700
#9800AD
oklch(49.1% 0.234 321.5)
-
Step 800
800
#7D018F
oklch(42.7% 0.203 321.4)
-
Step 900
900
#651572
oklch(37.7% 0.158 321.5)
-
Step 950
950
#3B0F43
oklch(26.9% 0.101 321.1)
#B303CC 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) | #005ED0 | 0.250 |
| Deuteranopia (no green cones) | #2F6EC8 | 0.239 |
| Tritanopia (no blue cones) | #B44278 | 0.156 |
| Achromatopsia (no color) | #696969 | 0.266 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B303CC
#B303CC
oklch(55.5% 0.263 321.4)
- #198B00
#198B00
oklch(55.4% 0.184 141.4)
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 #B303CC, closest first.
No curated palette has a color within ΔE 0.04 of #B303CC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vibrant Purple #AD03DE ΔE 0.032
- Dark Orchid #9932CC ΔE 0.057
- Dark Violet #9400D3 ΔE 0.066
- Hot Purple #CB00F5 ΔE 0.075
- Bright Purple #BE03FD ΔE 0.076
- Neon Purple #BC13FE ΔE 0.078
- Bright Violet #AD0AFD ΔE 0.078
- Purply #983FB2 ΔE 0.080
Use #B303CC 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.