#6B4B91
Closest named color: Twilight (#4E518B). oklch(47.9% 0.113 303.5), rgb(107, 75, 145).
Aa
White text reads best on this color (6.90:1).
About this color
#6B4B91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.113 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.051 away. White text reads best on it, at 6.90:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #6B4B91 |
| RGB | rgb(107, 75, 145) |
| HSL | hsl(267, 32%, 43%) |
| OKLCH | oklch(47.9% 0.113 303.5) |
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 #6B4B91 | 6.90:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #6B4B91 | 3.04:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #6B4B91 text on white | 6.90:1 | AA | Lc 83.7 | Fine for body text |
| #6B4B91 text on black | 3.04:1 | AA large text | Lc -18.2 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DDD5EA
oklch(88.6% 0.03 303)
-
Step 300
300
#C8B9DE
oklch(81% 0.054 303.6)
-
Step 400
400
#AC93CE
oklch(70.7% 0.089 303.6)
-
Step 500
500
#9878C1
oklch(63.2% 0.112 303.5)
-
Step 600
600
#835FAD
oklch(55.6% 0.123 304)
-
Step 700
700 (this color)
#6B4B91
oklch(47.9% 0.113 303.5)
-
Step 800
800
#5A4179
oklch(42.8% 0.094 303.3)
-
Step 900
900
#4A3761
oklch(37.7% 0.073 303.9)
-
Step 950
950
#2B2139
oklch(27.1% 0.045 302.6)
#6B4B91 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) | #375993 | 0.081 |
| Deuteranopia (no green cones) | #3F5A8F | 0.075 |
| Tritanopia (no blue cones) | #645767 | 0.085 |
| Achromatopsia (no color) | #5A5A5A | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4B91
#6B4B91
oklch(47.9% 0.113 303.5)
- #51670B
#51670B
oklch(47.9% 0.113 123.4)
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 #6B4B91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.051
- Light Eggplant #894585 ΔE 0.058
- Dusk #4E5481 ΔE 0.060
- Rebecca Purple #663399 ΔE 0.061
- Muted Purple #805B87 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.072
- Blueberry #464196 ΔE 0.072
- Dusty Grape #545775 ΔE 0.073
Use #6B4B91 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.