#6D33A6
Closest named color: Rebecca Purple (#663399). oklch(45.8% 0.177 303.1), rgb(109, 51, 166).
Aa
White text reads best on this color (7.85:1).
About this color
#6D33A6 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.177 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 0.024 away. White text reads best on it, at 7.85:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #6D33A6 |
| RGB | rgb(109, 51, 166) |
| HSL | hsl(270, 53%, 43%) |
| OKLCH | oklch(45.8% 0.177 303.1) |
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 #6D33A6 | 7.85:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #6D33A6 | 2.67:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #6D33A6 text on white | 7.85:1 | AAA | Lc 86.6 | Fine for body text |
| #6D33A6 text on black | 2.67:1 | Fails | Lc -15.5 | 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 800.
-
Step 50
50
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FB
oklch(93.5% 0.031 304.3)
-
Step 200
200
#E0D1F9
oklch(88.5% 0.057 302.3)
-
Step 300
300
#CEB0F8
oklch(80.8% 0.104 303.2)
-
Step 400
400
#B684F4
oklch(70.8% 0.165 303)
-
Step 500
500
#A55FEF
oklch(63.1% 0.21 303.3)
-
Step 600
600
#913EDE
oklch(55.6% 0.23 303.2)
-
Step 700
700
#7B2EC1
oklch(49.1% 0.213 302.9)
-
Step 800
800 (this color)
#6D33A6
oklch(45.8% 0.177 303.1)
-
Step 900
900
#51287C
oklch(37.7% 0.137 302.7)
-
Step 950
950
#301849
oklch(27% 0.089 303.6)
#6D33A6 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) | #0051A9 | 0.133 |
| Deuteranopia (no green cones) | #0051A4 | 0.134 |
| Tritanopia (no blue cones) | #624D68 | 0.129 |
| Achromatopsia (no color) | #525252 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D33A6
#6D33A6
oklch(45.8% 0.177 303.1)
- #4C6100
#4C6100
oklch(45.9% 0.113 123.1)
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 #6D33A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.024
- Grape #7209B7 ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.074
- Blueberry #464196 ΔE 0.077
- Blurple #5539CC ΔE 0.077
- Purple Blue #5D21D0 ΔE 0.080
Use #6D33A6 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.