#6B3679
Closest named color: Rebecca Purple (#663399). oklch(43% 0.121 318.9), rgb(107, 54, 121).
Aa
White text reads best on this color (8.64:1).
About this color
#6B3679 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.121 and its hue 319°. 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 8.64:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.42:1 |
| White text | 8.64:1 |
Values
| HEX | #6B3679 |
| RGB | rgb(107, 54, 121) |
| HSL | hsl(287, 38%, 34%) |
| OKLCH | oklch(43% 0.121 318.9) |
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 #6B3679 | 8.64:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #6B3679 | 2.42:1 | Fails | Lc 14.7 | Not readable |
| #6B3679 text on white | 8.64:1 | AAA | Lc 89.3 | Fine for body text |
| #6B3679 text on black | 2.42:1 | Fails | Lc -12.9 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E5D1EA
oklch(88.5% 0.04 319.5)
-
Step 300
300
#D5B3DE
oklch(81% 0.07 319.1)
-
Step 400
400
#BF89CD
oklch(70.7% 0.113 319.2)
-
Step 500
500
#AE6AC0
oklch(63.1% 0.144 319)
-
Step 600
600
#9950AD
oklch(55.6% 0.157 318.6)
-
Step 700
700
#834094
oklch(49.2% 0.146 319.1)
-
Step 800
800 (this color)
#6B3679
oklch(43% 0.121 318.9)
-
Step 900
900
#562F61
oklch(37.6% 0.094 318.5)
-
Step 950
950
#331C39
oklch(27.1% 0.06 319.1)
#6B3679 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) | #29487B | 0.111 |
| Deuteranopia (no green cones) | #3A4D77 | 0.098 |
| Tritanopia (no blue cones) | #6B4052 | 0.077 |
| Achromatopsia (no color) | #4C4C4C | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3679
#6B3679
oklch(43% 0.121 318.9)
- #275E13
#275E13
oklch(42.8% 0.12 138.9)
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 #6B3679, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.071
- Light Eggplant #894585 ΔE 0.073
- Purple #800080 ΔE 0.077
- Twilight #4E518B ΔE 0.082
- Blueberry #464196 ΔE 0.083
- Dusk #4E5481 ΔE 0.088
- Rich Purple #720058 ΔE 0.089
Use #6B3679 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.