#6D33B3
Closest named color: Rebecca Purple (#663399). oklch(46.9% 0.191 299.6), rgb(109, 51, 179).
Aa
White text reads best on this color (7.56:1).
About this color
#6D33B3 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.191 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.043 away. White text reads best on it, at 7.56:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #6D33B3 |
| RGB | rgb(109, 51, 179) |
| HSL | hsl(267, 56%, 45%) |
| OKLCH | oklch(46.9% 0.191 299.6) |
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 #6D33B3 | 7.56:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #6D33B3 | 2.77:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #6D33B3 text on white | 7.56:1 | AAA | Lc 85.5 | Fine for body text |
| #6D33B3 text on black | 2.77:1 | Fails | Lc -16.5 | 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 700.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DED2F7
oklch(88.5% 0.052 300.1)
-
Step 300
300
#C9B4F4
oklch(81% 0.091 299.4)
-
Step 400
400
#AF89EF
oklch(70.7% 0.149 299.8)
-
Step 500
500
#9C68E9
oklch(63.1% 0.189 299.6)
-
Step 600
600
#884BD7
oklch(55.7% 0.205 299.7)
-
Step 700
700 (this color)
#6D33B3
oklch(46.9% 0.191 299.6)
-
Step 800
800
#5E3297
oklch(42.8% 0.158 299.7)
-
Step 900
900
#4C2D78
oklch(37.6% 0.123 299.5)
-
Step 950
950
#2D1B46
oklch(27% 0.078 300.6)
#6D33B3 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) | #0054B7 | 0.130 |
| Deuteranopia (no green cones) | #0053B0 | 0.131 |
| Tritanopia (no blue cones) | #5D5270 | 0.141 |
| Achromatopsia (no color) | #545454 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D33B3
#6D33B3
oklch(46.9% 0.191 299.6)
- #536300
#536300
oklch(46.9% 0.112 120.1)
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 #6D33B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.043
- Bluey Purple #6241C7 ΔE 0.045
- Grape #7209B7 ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blurple #5539CC ΔE 0.061
- Purple Blue #5D21D0 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.073
- Burple #6832E3 ΔE 0.077
Use #6D33B3 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.