#6445A5
Closest named color: Rebecca Purple (#663399). oklch(47.4% 0.149 295), rgb(100, 69, 165).
Aa
White text reads best on this color (7.15:1).
About this color
#6445A5 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.149 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.042 away. White text reads best on it, at 7.15:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #6445A5 |
| RGB | rgb(100, 69, 165) |
| HSL | hsl(259, 41%, 46%) |
| OKLCH | oklch(47.4% 0.149 295) |
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 #6445A5 | 7.15:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #6445A5 | 2.93:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #6445A5 text on white | 7.15:1 | AAA | Lc 84.5 | Fine for body text |
| #6445A5 text on black | 2.93:1 | Fails | Lc -17.5 | 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
#DAD4F1
oklch(88.4% 0.04 295.1)
-
Step 300
300
#C3B8EB
oklch(80.9% 0.072 294.6)
-
Step 400
400
#A692E1
oklch(70.8% 0.115 294.9)
-
Step 500
500
#9174D8
oklch(63% 0.148 295.2)
-
Step 600
600
#7C5BC5
oklch(55.6% 0.159 295.1)
-
Step 700
700 (this color)
#6445A5
oklch(47.4% 0.149 295)
-
Step 800
800
#553D8A
oklch(42.6% 0.123 295)
-
Step 900
900
#46356E
oklch(37.7% 0.095 295.2)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#6445A5 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) | #0F58A8 | 0.100 |
| Deuteranopia (no green cones) | #1D56A3 | 0.094 |
| Tritanopia (no blue cones) | #54596E | 0.117 |
| Achromatopsia (no color) | #585858 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6445A5
#6445A5
oklch(47.4% 0.149 295)
- #5B6200
#5B6200
oklch(47.4% 0.107 114.5)
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 #6445A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.042
- Bluey Purple #6241C7 ΔE 0.055
- Blueberry #464196 ΔE 0.058
- Iris #6258C4 ΔE 0.063
- Twilight #4E518B ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.068
- Blurple #5539CC ΔE 0.074
Use #6445A5 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.