#6447A5
Closest named color: Rebecca Purple (#663399). oklch(47.7% 0.146 294.5), rgb(100, 71, 165).
Aa
White text reads best on this color (7.03:1).
About this color
#6447A5 is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.146 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.047 away. White text reads best on it, at 7.03:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #6447A5 |
| RGB | rgb(100, 71, 165) |
| HSL | hsl(259, 40%, 46%) |
| OKLCH | oklch(47.7% 0.146 294.5) |
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 #6447A5 | 7.03:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #6447A5 | 2.98:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #6447A5 text on white | 7.03:1 | AAA | Lc 84.1 | Fine for body text |
| #6447A5 text on black | 2.98:1 | Fails | Lc -17.9 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C3B8EA
oklch(80.8% 0.071 294.9)
-
Step 400
400
#A592E0
oklch(70.7% 0.113 294.5)
-
Step 500
500
#9075D7
oklch(63.1% 0.145 294.6)
-
Step 600
600
#7B5CC4
oklch(55.6% 0.156 294.5)
-
Step 700
700 (this color)
#6447A5
oklch(47.7% 0.146 294.5)
-
Step 800
800
#543E89
oklch(42.6% 0.12 294.2)
-
Step 900
900
#45366E
oklch(37.8% 0.094 293.8)
-
Step 950
950
#292040
oklch(27.1% 0.059 295.2)
#6447A5 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) | #175AA8 | 0.096 |
| Deuteranopia (no green cones) | #2157A3 | 0.090 |
| Tritanopia (no blue cones) | #545B6F | 0.116 |
| Achromatopsia (no color) | #595959 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6447A5
#6447A5
oklch(47.7% 0.146 294.5)
- #5C6300
#5C6300
oklch(47.7% 0.108 114.5)
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 #6447A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.056
- Blueberry #464196 ΔE 0.059
- Iris #6258C4 ΔE 0.060
- Twilight #4E518B ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.069
- Slate Blue #6A5ACD ΔE 0.075
Use #6447A5 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.