#6B33AE
Closest named color: Rebecca Purple (#663399). oklch(46.2% 0.185 300), rgb(107, 51, 174).
Aa
White text reads best on this color (7.74:1).
About this color
#6B33AE is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.185 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 0.035 away. White text reads best on it, at 7.74:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.70:1 |
| White text | 7.74:1 |
Values
| HEX | #6B33AE |
| RGB | rgb(107, 51, 174) |
| HSL | hsl(267, 55%, 44%) |
| OKLCH | oklch(46.2% 0.185 300) |
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 #6B33AE | 7.74:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #6B33AE | 2.70:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #6B33AE text on white | 7.74:1 | AAA | Lc 86.2 | Fine for body text |
| #6B33AE text on black | 2.70:1 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6F9
oklch(93.5% 0.026 300.3)
-
Step 200
200
#DED2F6
oklch(88.5% 0.051 300.6)
-
Step 300
300
#C9B4F2
oklch(80.9% 0.089 299.9)
-
Step 400
400
#AF8AEC
oklch(70.7% 0.143 300.2)
-
Step 500
500
#9C69E6
oklch(63.1% 0.184 300)
-
Step 600
600
#874DD4
oklch(55.6% 0.199 299.7)
-
Step 700
700 (this color)
#6B33AE
oklch(46.2% 0.185 300)
-
Step 800
800
#5E3394
oklch(42.7% 0.153 300.4)
-
Step 900
900
#4C2E76
oklch(37.6% 0.119 299.9)
-
Step 950
950
#2D1C45
oklch(27.1% 0.075 300.6)
#6B33AE 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) | #0052B2 | 0.128 |
| Deuteranopia (no green cones) | #0052AB | 0.129 |
| Tritanopia (no blue cones) | #5C516D | 0.138 |
| Achromatopsia (no color) | #535353 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B33AE
#6B33AE
oklch(46.2% 0.185 300)
- #516100
#516100
oklch(46.3% 0.11 120.2)
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 #6B33AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Grape #7209B7 ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Blurple #5539CC ΔE 0.064
- Purple Blue #5D21D0 ΔE 0.067
- Chrysanthemum #560BAD ΔE 0.070
- Blueberry #464196 ΔE 0.079
Use #6B33AE 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.