#6C3C81
Closest named color: Rebecca Purple (#663399). oklch(44.5% 0.12 314.6), rgb(108, 60, 129).
Aa
White text reads best on this color (8.07:1).
About this color
#6C3C81 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.120 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 0.049 away. White text reads best on it, at 8.07:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.60:1 |
| White text | 8.07:1 |
Values
| HEX | #6C3C81 |
| RGB | rgb(108, 60, 129) |
| HSL | hsl(282, 37%, 37%) |
| OKLCH | oklch(44.5% 0.12 314.6) |
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 #6C3C81 | 8.07:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #6C3C81 | 2.60:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #6C3C81 text on white | 8.07:1 | AAA | Lc 87.7 | Fine for body text |
| #6C3C81 text on black | 2.60:1 | Fails | Lc -14.5 | 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
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E3D2EB
oklch(88.5% 0.038 315.1)
-
Step 300
300
#D2B4E0
oklch(81% 0.069 315)
-
Step 400
400
#BB8BD1
oklch(70.8% 0.112 314.8)
-
Step 500
500
#A96CC5
oklch(63.1% 0.144 314.4)
-
Step 600
600
#9452B1
oklch(55.6% 0.155 314.5)
-
Step 700
700
#7E4298
oklch(49% 0.144 314.6)
-
Step 800
800 (this color)
#6C3C81
oklch(44.5% 0.12 314.6)
-
Step 900
900
#543063
oklch(37.7% 0.094 315.2)
-
Step 950
950
#311D3A
oklch(27% 0.058 314.7)
#6C3C81 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) | #2C4D83 | 0.105 |
| Deuteranopia (no green cones) | #3B517F | 0.093 |
| Tritanopia (no blue cones) | #6A4758 | 0.081 |
| Achromatopsia (no color) | #505050 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C3C81
#6C3C81
oklch(44.5% 0.12 314.6)
- #35610F
#35610F
oklch(44.4% 0.119 134.4)
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 #6C3C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Light Eggplant #894585 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.068
- Twilight #4E518B ΔE 0.070
- Blueberry #464196 ΔE 0.076
- Dusk #4E5481 ΔE 0.077
- Warm Purple #952E8F ΔE 0.084
- Purple #800080 ΔE 0.086
Use #6C3C81 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.