#6C3281
Closest named color: Rebecca Purple (#663399). oklch(43% 0.137 316.1), rgb(108, 50, 129).
Aa
White text reads best on this color (8.71:1).
About this color
#6C3281 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.137 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.042 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #6C3281 |
| RGB | rgb(108, 50, 129) |
| HSL | hsl(284, 44%, 35%) |
| OKLCH | oklch(43% 0.137 316.1) |
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 #6C3281 | 8.71:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #6C3281 | 2.41:1 | Fails | Lc 14.6 | Not readable |
| #6C3281 text on white | 8.71:1 | AAA | Lc 89.4 | Fine for body text |
| #6C3281 text on black | 2.41:1 | 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
#F0E5F5
oklch(93.5% 0.024 315.5)
-
Step 200
200
#E5D1ED
oklch(88.5% 0.043 316.4)
-
Step 300
300
#D5B1E4
oklch(80.9% 0.08 315.9)
-
Step 400
400
#C087D6
oklch(70.8% 0.127 316.2)
-
Step 500
500
#AF66CB
oklch(63.1% 0.163 315.9)
-
Step 600
600
#9A4AB8
oklch(55.6% 0.178 315.8)
-
Step 700
700
#843A9E
oklch(49.1% 0.166 316.3)
-
Step 800
800 (this color)
#6C3281
oklch(43% 0.137 316.1)
-
Step 900
900
#572C67
oklch(37.6% 0.107 316.1)
-
Step 950
950
#331B3C
oklch(27% 0.066 316.2)
#6C3281 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) | #1C4883 | 0.127 |
| Deuteranopia (no green cones) | #324D7F | 0.112 |
| Tritanopia (no blue cones) | #6B3F54 | 0.089 |
| Achromatopsia (no color) | #4B4B4B | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C3281
#6C3281
oklch(43% 0.137 316.1)
- #2A5E00
#2A5E00
oklch(42.9% 0.128 136.2)
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 #6C3281, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.042
- Purple #800080 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.071
- Light Eggplant #894585 ΔE 0.076
- Dark Magenta #8B008B ΔE 0.079
- Blueberry #464196 ΔE 0.080
- Warm Purple #952E8F ΔE 0.084
- Twilight #4E518B ΔE 0.088
Use #6C3281 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.