#6C3983
Closest named color: Rebecca Purple (#663399). oklch(44.2% 0.127 314.2), rgb(108, 57, 131).
Aa
White text reads best on this color (8.23:1).
About this color
#6C3983 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.127 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.043 away. White text reads best on it, at 8.23:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.55:1 |
| White text | 8.23:1 |
Values
| HEX | #6C3983 |
| RGB | rgb(108, 57, 131) |
| HSL | hsl(281, 39%, 37%) |
| OKLCH | oklch(44.2% 0.127 314.2) |
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 #6C3983 | 8.23:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #6C3983 | 2.55:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #6C3983 text on white | 8.23:1 | AAA | Lc 88.1 | Fine for body text |
| #6C3983 text on black | 2.55:1 | Fails | Lc -14.1 | 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
#E3D2ED
oklch(88.6% 0.041 313.2)
-
Step 300
300
#D2B3E3
oklch(80.9% 0.074 313.5)
-
Step 400
400
#BC89D4
oklch(70.6% 0.12 314.5)
-
Step 500
500
#AB6AC9
oklch(63.2% 0.152 314.3)
-
Step 600
600
#964FB5
oklch(55.6% 0.165 314.5)
-
Step 700
700
#803F9C
oklch(49.1% 0.154 314.5)
-
Step 800
800 (this color)
#6C3983
oklch(44.2% 0.127 314.2)
-
Step 900
900
#542F66
oklch(37.7% 0.099 313.6)
-
Step 950
950
#311C3C
oklch(27% 0.063 313.1)
#6C3983 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) | #264C85 | 0.113 |
| Deuteranopia (no green cones) | #375081 | 0.100 |
| Tritanopia (no blue cones) | #6A4558 | 0.085 |
| Achromatopsia (no color) | #4F4F4F | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C3983
#6C3983
oklch(44.2% 0.127 314.2)
- #326100
#326100
oklch(44.1% 0.127 134.3)
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 #6C3983, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.043
- Light Eggplant #894585 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.067
- Blueberry #464196 ΔE 0.075
- Twilight #4E518B ΔE 0.075
- Purple #800080 ΔE 0.079
- Warm Purple #952E8F ΔE 0.083
- Dusk #4E5481 ΔE 0.084
Use #6C3983 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.