#6C478E
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.117 306.5), rgb(108, 71, 142).
Aa
White text reads best on this color (7.16:1).
About this color
#6C478E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.117 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.054 away. White text reads best on it, at 7.16:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.92:1 |
| White text | 7.16:1 |
Values
| HEX | #6C478E |
| RGB | rgb(108, 71, 142) |
| HSL | hsl(271, 33%, 42%) |
| OKLCH | oklch(47.1% 0.117 306.5) |
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 #6C478E | 7.16:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #6C478E | 2.92:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #6C478E text on white | 7.16:1 | AAA | Lc 84.7 | Fine for body text |
| #6C478E text on black | 2.92:1 | Fails | Lc -17.3 | 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 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
#CAB8DE
oklch(81% 0.056 306.6)
-
Step 400
400
#AF92CD
oklch(70.7% 0.09 306.7)
-
Step 500
500
#9B76C0
oklch(63.1% 0.115 306.4)
-
Step 600
600
#865DAD
oklch(55.5% 0.127 306.3)
-
Step 700
700 (this color)
#6C478E
oklch(47.1% 0.117 306.5)
-
Step 800
800
#5D3F78
oklch(42.7% 0.097 307)
-
Step 900
900
#4C3661
oklch(37.7% 0.076 306.7)
-
Step 950
950
#2C2039
oklch(27% 0.048 305.5)
#6C478E 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) | #345690 | 0.088 |
| Deuteranopia (no green cones) | #3E588C | 0.081 |
| Tritanopia (no blue cones) | #675364 | 0.085 |
| Achromatopsia (no color) | #585858 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C478E
#6C478E
oklch(47.1% 0.117 306.5)
- #4A6608
#4A6608
oklch(47.1% 0.117 126.4)
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 #6C478E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.054
- Twilight #4E518B ΔE 0.055
- Light Eggplant #894585 ΔE 0.056
- Dusk #4E5481 ΔE 0.065
- Muted Purple #805B87 ΔE 0.070
- Blueberry #464196 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.072
- Dusty Grape #545775 ΔE 0.077
Use #6C478E 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.