#6C3873
Closest named color: Rebecca Purple (#663399). oklch(43.1% 0.111 322.7), rgb(108, 56, 115).
Aa
White text reads best on this color (8.56:1).
About this color
#6C3873 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.111 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.067 away. White text reads best on it, at 8.56:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #6C3873 |
| RGB | rgb(108, 56, 115) |
| HSL | hsl(293, 35%, 34%) |
| OKLCH | oklch(43.1% 0.111 322.7) |
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 #6C3873 | 8.56:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #6C3873 | 2.45:1 | Fails | Lc 14.9 | Not readable |
| #6C3873 text on white | 8.56:1 | AAA | Lc 89.1 | Fine for body text |
| #6C3873 text on black | 2.45:1 | Fails | Lc -13.1 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F1
oklch(93.6% 0.018 323)
-
Step 200
200
#E5D2E7
oklch(88.5% 0.035 322.9)
-
Step 300
300
#D5B3D9
oklch(80.8% 0.064 322.8)
-
Step 400
400
#C08AC6
oklch(70.6% 0.104 323.2)
-
Step 500
500
#AF6CB8
oklch(63.1% 0.133 322.7)
-
Step 600
600
#9A52A4
oklch(55.6% 0.145 322.6)
-
Step 700
700
#83428C
oklch(49% 0.134 322.6)
-
Step 800
800 (this color)
#6C3873
oklch(43.1% 0.111 322.7)
-
Step 900
900
#57305C
oklch(37.7% 0.087 322.9)
-
Step 950
950
#331D36
oklch(27.1% 0.054 322.6)
#6C3873 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) | #304875 | 0.104 |
| Deuteranopia (no green cones) | #3F4E71 | 0.093 |
| Tritanopia (no blue cones) | #6E3F50 | 0.067 |
| Achromatopsia (no color) | #4C4C4C | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C3873
#6C3873
oklch(43.1% 0.111 322.7)
- #245F22
#245F22
oklch(43.2% 0.111 142.8)
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 #6C3873, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.067
- Light Eggplant #894585 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.077
- Brownish Purple #76424E ΔE 0.078
- Twilight #4E518B ΔE 0.082
- Purple #800080 ΔE 0.084
- Dusk #4E5481 ΔE 0.085
- Velvet #750851 ΔE 0.087
Use #6C3873 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.