#6B478E
Closest named color: Twilight (#4E518B). oklch(47% 0.116 305.8), rgb(107, 71, 142).
Aa
White text reads best on this color (7.19:1).
About this color
#6B478E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.116 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.053 away. White text reads best on it, at 7.19:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #6B478E |
| RGB | rgb(107, 71, 142) |
| HSL | hsl(270, 33%, 42%) |
| OKLCH | oklch(47% 0.116 305.8) |
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 #6B478E | 7.19:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #6B478E | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #6B478E text on white | 7.19:1 | AAA | Lc 84.8 | Fine for body text |
| #6B478E text on black | 2.91:1 | Fails | Lc -17.2 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DED4EA
oklch(88.5% 0.032 306.2)
-
Step 300
300
#C9B8DE
oklch(80.9% 0.056 305.4)
-
Step 400
400
#AE92CE
oklch(70.7% 0.091 305.5)
-
Step 500
500
#9B76C1
oklch(63.1% 0.116 306)
-
Step 600
600
#855EAD
oklch(55.6% 0.125 305.5)
-
Step 700
700 (this color)
#6B478E
oklch(47% 0.116 305.8)
-
Step 800
800
#5C3F78
oklch(42.6% 0.097 306.2)
-
Step 900
900
#4B3661
oklch(37.6% 0.075 305.6)
-
Step 950
950
#2C2039
oklch(27% 0.048 305.5)
#6B478E 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) | #335690 | 0.088 |
| Deuteranopia (no green cones) | #3D578C | 0.079 |
| Tritanopia (no blue cones) | #655364 | 0.085 |
| Achromatopsia (no color) | #575757 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B478E
#6B478E
oklch(47% 0.116 305.8)
- #4B6606
#4B6606
oklch(47.1% 0.117 125.9)
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 #6B478E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.053
- Rebecca Purple #663399 ΔE 0.053
- Light Eggplant #894585 ΔE 0.058
- Dusk #4E5481 ΔE 0.063
- Blueberry #464196 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.070
- Muted Purple #805B87 ΔE 0.072
- Dusty Grape #545775 ΔE 0.076
Use #6B478E 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.