#6539A9
Closest named color: Rebecca Purple (#663399). oklch(46% 0.171 297.2), rgb(101, 57, 169).
Aa
White text reads best on this color (7.74:1).
About this color
#6539A9 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.171 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.028 away. White text reads best on it, at 7.74:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #6539A9 |
| RGB | rgb(101, 57, 169) |
| HSL | hsl(264, 50%, 44%) |
| OKLCH | oklch(46% 0.171 297.2) |
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 #6539A9 | 7.74:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #6539A9 | 2.71:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #6539A9 text on white | 7.74:1 | AAA | Lc 86.4 | Fine for body text |
| #6539A9 text on black | 2.71:1 | Fails | Lc -15.7 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F4
oklch(88.4% 0.046 297.9)
-
Step 300
300
#C6B6F0
oklch(80.9% 0.082 297.2)
-
Step 400
400
#AA8EE8
oklch(70.8% 0.131 297.3)
-
Step 500
500
#966EE1
oklch(63% 0.169 297.4)
-
Step 600
600
#8153CF
oklch(55.5% 0.184 297.1)
-
Step 700
700 (this color)
#6539A9
oklch(46% 0.171 297.2)
-
Step 800
800
#593891
oklch(42.7% 0.141 297.1)
-
Step 900
900
#493174
oklch(37.7% 0.111 297.3)
-
Step 950
950
#2B1E44
oklch(27.2% 0.069 297.4)
#6539A9 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) | #0053AC | 0.115 |
| Deuteranopia (no green cones) | #0051A7 | 0.115 |
| Tritanopia (no blue cones) | #54536C | 0.131 |
| Achromatopsia (no color) | #535353 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6539A9
#6539A9
oklch(46% 0.171 297.2)
- #545F00
#545F00
oklch(46% 0.106 117.3)
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 #6539A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Bluey Purple #6241C7 ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Blueberry #464196 ΔE 0.063
- Grape #7209B7 ΔE 0.063
- Blurple #5539CC ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.071
- Chrysanthemum #560BAD ΔE 0.073
Use #6539A9 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.