#6B3374
Closest named color: Rebecca Purple (#663399). oklch(42.2% 0.12 321.9), rgb(107, 51, 116).
Aa
White text reads best on this color (8.93:1).
About this color
#6B3374 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.120 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.063 away. White text reads best on it, at 8.93:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.35:1 |
| White text | 8.93:1 |
Values
| HEX | #6B3374 |
| RGB | rgb(107, 51, 116) |
| HSL | hsl(292, 39%, 33%) |
| OKLCH | oklch(42.2% 0.12 321.9) |
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 #6B3374 | 8.93:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #6B3374 | 2.35:1 | Fails | Lc 13.9 | Not readable |
| #6B3374 text on white | 8.93:1 | AAA | Lc 90.1 | Preferred for body text |
| #6B3374 text on black | 2.35:1 | Fails | Lc -12.2 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F1E6F2
oklch(93.7% 0.02 323.2)
-
Step 200
200
#E6D1E9
oklch(88.5% 0.04 322)
-
Step 300
300
#D7B2DC
oklch(80.9% 0.071 322.3)
-
Step 400
400
#C188CA
oklch(70.6% 0.113 321.9)
-
Step 500
500
#B169BD
oklch(63.1% 0.144 321.7)
-
Step 600
600
#9C4EA9
oklch(55.5% 0.157 321.7)
-
Step 700
700
#853F91
oklch(49.1% 0.145 321.6)
-
Step 800
800 (this color)
#6B3374
oklch(42.2% 0.12 321.9)
-
Step 900
900
#582E5F
oklch(37.6% 0.095 321.7)
-
Step 950
950
#341C38
oklch(27.1% 0.06 321.7)
#6B3374 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) | #284576 | 0.115 |
| Deuteranopia (no green cones) | #3A4C72 | 0.102 |
| Tritanopia (no blue cones) | #6C3C4E | 0.074 |
| Achromatopsia (no color) | #494949 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3374
#6B3374
oklch(42.2% 0.12 321.9)
- #1D5D17
#1D5D17
oklch(42.2% 0.121 141.9)
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 #6B3374, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.063
- Purple #800080 ΔE 0.075
- Dark Slate Blue #483D8B ΔE 0.076
- Light Eggplant #894585 ΔE 0.079
- Rich Purple #720058 ΔE 0.080
- Velvet #750851 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.086
- Brownish Purple #76424E ΔE 0.088
Use #6B3374 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.