#6B3B9D
Closest named color: Rebecca Purple (#663399). oklch(46% 0.155 303.4), rgb(107, 59, 157).
Aa
White text reads best on this color (7.67:1).
About this color
#6B3B9D is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.155 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.021 away. White text reads best on it, at 7.67:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #6B3B9D |
| RGB | rgb(107, 59, 157) |
| HSL | hsl(269, 45%, 42%) |
| OKLCH | oklch(46% 0.155 303.4) |
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 #6B3B9D | 7.67:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #6B3B9D | 2.73:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #6B3B9D text on white | 7.67:1 | AAA | Lc 86.2 | Fine for body text |
| #6B3B9D text on black | 2.73:1 | Fails | Lc -15.9 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F0
oklch(88.5% 0.041 304.3)
-
Step 300
300
#CAB5E9
oklch(80.8% 0.075 303.2)
-
Step 400
400
#B08DDE
oklch(70.6% 0.121 303.3)
-
Step 500
500
#9D6FD4
oklch(63.1% 0.152 303.3)
-
Step 600
600
#8855C1
oklch(55.6% 0.165 303.2)
-
Step 700
700 (this color)
#6B3B9D
oklch(46% 0.155 303.4)
-
Step 800
800
#5E3987
oklch(42.7% 0.127 303.3)
-
Step 900
900
#4D326C
oklch(37.7% 0.099 303.5)
-
Step 950
950
#2D1E3F
oklch(27.1% 0.062 303.5)
#6B3B9D 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) | #0052A0 | 0.125 |
| Deuteranopia (no green cones) | #20539B | 0.113 |
| Tritanopia (no blue cones) | #624F66 | 0.114 |
| Achromatopsia (no color) | #535353 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3B9D
#6B3B9D
oklch(46% 0.155 303.4)
- #4C6200
#4C6200
oklch(46.1% 0.114 123.5)
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 #6B3B9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.021
- Blueberry #464196 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.069
- Bluey Purple #6241C7 ΔE 0.070
- Grape #7209B7 ΔE 0.075
- Twilight #4E518B ΔE 0.078
- Light Eggplant #894585 ΔE 0.079
- Blue With A Hint Of Purple #533CC6 ΔE 0.080
Use #6B3B9D 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.