#6A3780
Closest named color: Rebecca Purple (#663399). oklch(43.4% 0.126 314.6), rgb(106, 55, 128).
Aa
White text reads best on this color (8.49:1).
About this color
#6A3780 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.126 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.044 away. White text reads best on it, at 8.49:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #6A3780 |
| RGB | rgb(106, 55, 128) |
| HSL | hsl(282, 40%, 36%) |
| OKLCH | oklch(43.4% 0.126 314.6) |
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 #6A3780 | 8.49:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #6A3780 | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #6A3780 text on white | 8.49:1 | AAA | Lc 88.9 | Fine for body text |
| #6A3780 text on black | 2.47:1 | Fails | Lc -13.3 | Not readable |
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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E3D2EC
oklch(88.5% 0.04 314.1)
-
Step 300
300
#D3B3E2
oklch(81% 0.074 314.9)
-
Step 400
400
#BC89D4
oklch(70.6% 0.12 314.5)
-
Step 500
500
#AB6AC8
oklch(63.1% 0.151 314.6)
-
Step 600
600
#964FB4
oklch(55.5% 0.164 314.8)
-
Step 700
700
#803F9B
oklch(49% 0.153 314.8)
-
Step 800
800 (this color)
#6A3780
oklch(43.4% 0.126 314.6)
-
Step 900
900
#552F65
oklch(37.8% 0.098 315.1)
-
Step 950
950
#321C3B
oklch(27% 0.062 315.5)
#6A3780 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) | #244A82 | 0.113 |
| Deuteranopia (no green cones) | #364E7E | 0.099 |
| Tritanopia (no blue cones) | #684356 | 0.084 |
| Achromatopsia (no color) | #4D4D4D | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A3780
#6A3780
oklch(43.4% 0.126 314.6)
- #305F00
#305F00
oklch(43.5% 0.126 134.5)
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 #6A3780, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.065
- Light Eggplant #894585 ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Twilight #4E518B ΔE 0.077
- Purple #800080 ΔE 0.078
- Dusk #4E5481 ΔE 0.086
- Warm Purple #952E8F ΔE 0.087
Use #6A3780 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.