#6B4091
Closest named color: Rebecca Purple (#663399). oklch(46% 0.132 306.4), rgb(107, 64, 145).
Aa
White text reads best on this color (7.58:1).
About this color
#6B4091 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.132 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.035 away. White text reads best on it, at 7.58:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.76:1 |
| White text | 7.58:1 |
Values
| HEX | #6B4091 |
| RGB | rgb(107, 64, 145) |
| HSL | hsl(272, 39%, 41%) |
| OKLCH | oklch(46% 0.132 306.4) |
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 #6B4091 | 7.58:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #6B4091 | 2.76:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #6B4091 text on white | 7.58:1 | AAA | Lc 86.1 | Fine for body text |
| #6B4091 text on black | 2.76:1 | Fails | Lc -16.0 | 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 700.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD4EC
oklch(88.6% 0.035 306.3)
-
Step 300
300
#CBB6E2
oklch(80.8% 0.065 306.6)
-
Step 400
400
#B190D3
oklch(70.8% 0.102 306.5)
-
Step 500
500
#9E73C7
oklch(63.2% 0.13 306.6)
-
Step 600
600
#895AB4
oklch(55.7% 0.142 306.5)
-
Step 700
700 (this color)
#6B4091
oklch(46% 0.132 306.4)
-
Step 800
800
#5E3C7D
oklch(42.6% 0.109 306.5)
-
Step 900
900
#4D3465
oklch(37.7% 0.086 306.3)
-
Step 950
950
#2D1F3B
oklch(27% 0.054 306.2)
#6B4091 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) | #255294 | 0.105 |
| Deuteranopia (no green cones) | #33548F | 0.095 |
| Tritanopia (no blue cones) | #654F62 | 0.096 |
| Achromatopsia (no color) | #545454 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4091
#6B4091
oklch(46% 0.132 306.4)
- #476300
#476300
oklch(46% 0.118 126.4)
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 #6B4091, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Twilight #4E518B ΔE 0.064
- Light Eggplant #894585 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.065
- Blueberry #464196 ΔE 0.065
- Dusk #4E5481 ΔE 0.077
- Warm Purple #952E8F ΔE 0.084
- Muted Purple #805B87 ΔE 0.088
Use #6B4091 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.