#6D3B91
Closest named color: Rebecca Purple (#663399). oklch(45.5% 0.141 308.7), rgb(109, 59, 145).
Aa
White text reads best on this color (7.82:1).
About this color
#6D3B91 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.141 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 0.028 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #6D3B91 |
| RGB | rgb(109, 59, 145) |
| HSL | hsl(275, 42%, 40%) |
| OKLCH | oklch(45.5% 0.141 308.7) |
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 #6D3B91 | 7.82:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #6D3B91 | 2.68:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #6D3B91 text on white | 7.82:1 | AAA | Lc 86.8 | Fine for body text |
| #6D3B91 text on black | 2.68:1 | Fails | Lc -15.3 | Dividers and decoration only |
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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F6
oklch(93.6% 0.023 308.2)
-
Step 200
200
#E2D2F1
oklch(88.6% 0.045 308.6)
-
Step 300
300
#D0B3EA
oklch(81% 0.082 308.5)
-
Step 400
400
#B889DF
oklch(70.8% 0.131 308.5)
-
Step 500
500
#A768D6
oklch(63.1% 0.169 308.8)
-
Step 600
600
#924CC3
oklch(55.6% 0.184 308.7)
-
Step 700
700
#7C3CA8
oklch(49% 0.17 308.7)
-
Step 800
800 (this color)
#6D3B91
oklch(45.5% 0.141 308.7)
-
Step 900
900
#522E6D
oklch(37.7% 0.109 308.4)
-
Step 950
950
#301B40
oklch(26.9% 0.07 308.6)
#6D3B91 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) | #1C5094 | 0.119 |
| Deuteranopia (no green cones) | #30538F | 0.106 |
| Tritanopia (no blue cones) | #684B60 | 0.099 |
| Achromatopsia (no color) | #525252 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D3B91
#6D3B91
oklch(45.5% 0.141 308.7)
- #426200
#426200
oklch(45.4% 0.119 128.4)
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 #6D3B91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Light Eggplant #894585 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.068
- Blueberry #464196 ΔE 0.070
- Twilight #4E518B ΔE 0.074
- Warm Purple #952E8F ΔE 0.079
- Purple #800080 ΔE 0.084
- Dusk #4E5481 ΔE 0.087
Use #6D3B91 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.