#6B3590
Closest named color: Rebecca Purple (#663399). oklch(44.3% 0.148 308.9), rgb(107, 53, 144).
Aa
White text reads best on this color (8.27:1).
About this color
#6B3590 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.148 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.019 away. White text reads best on it, at 8.27:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #6B3590 |
| RGB | rgb(107, 53, 144) |
| HSL | hsl(276, 46%, 39%) |
| OKLCH | oklch(44.3% 0.148 308.9) |
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 #6B3590 | 8.27:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #6B3590 | 2.53:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #6B3590 text on white | 8.27:1 | AAA | Lc 88.1 | Fine for body text |
| #6B3590 text on black | 2.53:1 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E2D1F2
oklch(88.5% 0.048 308.5)
-
Step 300
300
#D1B2EC
oklch(81% 0.087 308.8)
-
Step 400
400
#BA87E2
oklch(70.8% 0.139 309)
-
Step 500
500
#A965D9
oklch(63.1% 0.178 309.3)
-
Step 600
600
#9449C7
oklch(55.7% 0.193 308.8)
-
Step 700
700
#7E39AC
oklch(49.1% 0.179 308.8)
-
Step 800
800 (this color)
#6B3590
oklch(44.3% 0.148 308.9)
-
Step 900
900
#532C6F
oklch(37.6% 0.115 308.7)
-
Step 950
950
#311B41
oklch(27.1% 0.072 309.1)
#6B3590 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) | #094C93 | 0.130 |
| Deuteranopia (no green cones) | #284F8E | 0.114 |
| Tritanopia (no blue cones) | #66475D | 0.105 |
| Achromatopsia (no color) | #4E4E4E | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3590
#6B3590
oklch(44.3% 0.148 308.9)
- #3F5F00
#3F5F00
oklch(44.4% 0.117 128.8)
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 #6B3590, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.019
- Dark Slate Blue #483D8B ΔE 0.065
- Blueberry #464196 ΔE 0.069
- Purple #800080 ΔE 0.076
- Light Eggplant #894585 ΔE 0.078
- Grape #7209B7 ΔE 0.081
- Dark Magenta #8B008B ΔE 0.082
- Twilight #4E518B ΔE 0.083
Use #6B3590 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.