#6B2C78
Closest named color: Rebecca Purple (#663399). oklch(41.5% 0.136 320.5), rgb(107, 44, 120).
Aa
White text reads best on this color (9.30:1).
About this color
#6B2C78 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.136 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.056 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #6B2C78 |
| RGB | rgb(107, 44, 120) |
| HSL | hsl(290, 46%, 32%) |
| OKLCH | oklch(41.5% 0.136 320.5) |
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 #6B2C78 | 9.30:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #6B2C78 | 2.25:1 | Fails | Lc 13.1 | Not readable |
| #6B2C78 text on white | 9.30:1 | AAA | Lc 90.9 | Preferred for body text |
| #6B2C78 text on black | 2.25:1 | Fails | Lc -11.4 | 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F4
oklch(93.6% 0.024 319.5)
-
Step 200
200
#E7D0EC
oklch(88.5% 0.045 320.2)
-
Step 300
300
#D8B0E1
oklch(80.8% 0.08 320.1)
-
Step 400
400
#C485D1
oklch(70.7% 0.127 320.6)
-
Step 500
500
#B464C5
oklch(63.1% 0.162 320.4)
-
Step 600
600
#9F48B1
oklch(55.5% 0.176 320.5)
-
Step 700
700
#883899
oklch(49.1% 0.165 320.2)
-
Step 800
800 (this color)
#6B2C78
oklch(41.5% 0.136 320.5)
-
Step 900
900
#5A2B64
oklch(37.7% 0.107 320.4)
-
Step 950
950
#351A3A
oklch(27% 0.067 321.2)
#6B2C78 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) | #1A427A | 0.133 |
| Deuteranopia (no green cones) | #334976 | 0.114 |
| Tritanopia (no blue cones) | #6C384D | 0.085 |
| Achromatopsia (no color) | #474747 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B2C78
#6B2C78
oklch(41.5% 0.136 320.5)
- #155C00
#155C00
oklch(41.5% 0.135 140.4)
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 #6B2C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.056
- Purple #800080 ΔE 0.062
- Rich Purple #720058 ΔE 0.073
- Velvet #750851 ΔE 0.078
- Dark Slate Blue #483D8B ΔE 0.078
- Dark Magenta #8B008B ΔE 0.080
- Grape Purple #5D1451 ΔE 0.081
- Light Eggplant #894585 ΔE 0.087
Use #6B2C78 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.