#733D8F
Closest named color: Rebecca Purple (#663399). oklch(46.4% 0.138 312.7), rgb(115, 61, 143).
Aa
White text reads best on this color (7.51:1).
About this color
#733D8F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.138 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.041 away. White text reads best on it, at 7.51:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #733D8F |
| RGB | rgb(115, 61, 143) |
| HSL | hsl(280, 40%, 40%) |
| OKLCH | oklch(46.4% 0.138 312.7) |
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 #733D8F | 7.51:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #733D8F | 2.79:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #733D8F text on white | 7.51:1 | AAA | Lc 85.7 | Fine for body text |
| #733D8F text on black | 2.79:1 | Fails | Lc -16.3 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F3
oklch(93.5% 0.019 312.8)
-
Step 200
200
#E2D3EB
oklch(88.6% 0.036 313)
-
Step 300
300
#D0B5E0
oklch(81% 0.066 312.9)
-
Step 400
400
#B78DD0
oklch(70.7% 0.106 312.4)
-
Step 500
500
#A66FC4
oklch(63.2% 0.136 312.8)
-
Step 600
600
#9155B0
oklch(55.6% 0.148 313)
-
Step 700
700 (this color)
#733D8F
oklch(46.4% 0.138 312.7)
-
Step 800
800
#64397B
oklch(42.7% 0.114 312.6)
-
Step 900
900
#523263
oklch(37.8% 0.089 312.9)
-
Step 950
950
#301E3A
oklch(27.1% 0.055 312.7)
#733D8F 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) | #265292 | 0.120 |
| Deuteranopia (no green cones) | #39568D | 0.107 |
| Tritanopia (no blue cones) | #704B60 | 0.093 |
| Achromatopsia (no color) | #545454 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #733D8F
#733D8F
oklch(46.4% 0.138 312.7)
- #3B6700
#3B6700
oklch(46.3% 0.13 132.5)
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 #733D8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.041
- Light Eggplant #894585 ΔE 0.053
- Warm Purple #952E8F ΔE 0.068
- Twilight #4E518B ΔE 0.078
- Dark Slate Blue #483D8B ΔE 0.079
- Blueberry #464196 ΔE 0.081
- Purple #800080 ΔE 0.083
- Dark Magenta #8B008B ΔE 0.084
Use #733D8F 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.