#6447A7
Closest named color: Rebecca Purple (#663399). oklch(47.9% 0.148 294), rgb(100, 71, 167).
Aa
White text reads best on this color (6.99:1).
About this color
#6447A7 is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.148 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 0.048 away. White text reads best on it, at 6.99:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #6447A7 |
| RGB | rgb(100, 71, 167) |
| HSL | hsl(258, 40%, 47%) |
| OKLCH | oklch(47.9% 0.148 294) |
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 #6447A7 | 6.99:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #6447A7 | 3.00:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #6447A7 text on white | 6.99:1 | AA | Lc 83.9 | Fine for body text |
| #6447A7 text on black | 3.00:1 | AA large text | Lc -18.0 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C3B8EB
oklch(80.9% 0.072 294.6)
-
Step 400
400
#A592E1
oklch(70.7% 0.115 294.3)
-
Step 500
500
#8F75D8
oklch(63% 0.146 293.9)
-
Step 600
600
#7A5CC6
oklch(55.6% 0.159 293.6)
-
Step 700
700 (this color)
#6447A7
oklch(47.9% 0.148 294)
-
Step 800
800
#543E8A
oklch(42.7% 0.122 294)
-
Step 900
900
#45356F
oklch(37.6% 0.097 294)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#6447A7 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) | #135AAA | 0.097 |
| Deuteranopia (no green cones) | #1E57A5 | 0.091 |
| Tritanopia (no blue cones) | #535B70 | 0.117 |
| Achromatopsia (no color) | #595959 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6447A7
#6447A7
oklch(47.9% 0.148 294)
- #5D6300
#5D6300
oklch(47.8% 0.107 113.8)
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 #6447A7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.053
- Iris #6258C4 ΔE 0.058
- Blueberry #464196 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Twilight #4E518B ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.071
- Blurple #5539CC ΔE 0.073
Use #6447A7 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.