#6B33AB
Closest named color: Rebecca Purple (#663399). oklch(46% 0.182 300.7), rgb(107, 51, 171).
Aa
White text reads best on this color (7.81:1).
About this color
#6B33AB is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.182 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.030 away. White text reads best on it, at 7.81:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.68:1 |
| White text | 7.81:1 |
Values
| HEX | #6B33AB |
| RGB | rgb(107, 51, 171) |
| HSL | hsl(268, 54%, 44%) |
| OKLCH | oklch(46% 0.182 300.7) |
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 #6B33AB | 7.81:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #6B33AB | 2.68:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #6B33AB text on white | 7.81:1 | AAA | Lc 86.4 | Fine for body text |
| #6B33AB text on black | 2.68:1 | Fails | Lc -15.6 | 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 700.
-
Step 50
50
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#ECE6F9
oklch(93.5% 0.026 300.3)
-
Step 200
200
#DED2F5
oklch(88.4% 0.049 301)
-
Step 300
300
#CAB4F1
oklch(80.9% 0.088 301)
-
Step 400
400
#AF8AEA
oklch(70.6% 0.141 300.6)
-
Step 500
500
#9D6AE3
oklch(63.2% 0.179 300.9)
-
Step 600
600
#884DD1
oklch(55.5% 0.195 300.7)
-
Step 700
700 (this color)
#6B33AB
oklch(46% 0.182 300.7)
-
Step 800
800
#5E3493
oklch(42.8% 0.15 300.5)
-
Step 900
900
#4D2E75
oklch(37.7% 0.118 301)
-
Step 950
950
#2D1C44
oklch(27% 0.073 301.3)
#6B33AB 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) | #0051AF | 0.129 |
| Deuteranopia (no green cones) | #0051A9 | 0.130 |
| Tritanopia (no blue cones) | #5D506B | 0.136 |
| Achromatopsia (no color) | #525252 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B33AB
#6B33AB
oklch(46% 0.182 300.7)
- #506000
#506000
oklch(45.9% 0.109 120.3)
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 #6B33AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.030
- Grape #7209B7 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Blurple #5539CC ΔE 0.068
- Chrysanthemum #560BAD ΔE 0.070
- Purple Blue #5D21D0 ΔE 0.071
- Blueberry #464196 ΔE 0.077
Use #6B33AB 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.