#6645AD
Closest named color: Bluey Purple (#6241C7). oklch(48.2% 0.159 294.3), rgb(102, 69, 173).
Aa
White text reads best on this color (6.95:1).
About this color
#6645AD is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.159 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.043 away. White text reads best on it, at 6.95:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.01:1 |
| White text | 6.95:1 |
Values
| HEX | #6645AD |
| RGB | rgb(102, 69, 173) |
| HSL | hsl(259, 43%, 47%) |
| OKLCH | oklch(48.2% 0.159 294.3) |
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 #6645AD | 6.95:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #6645AD | 3.01:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #6645AD text on white | 6.95:1 | AA | Lc 83.7 | Fine for body text |
| #6645AD text on black | 3.01:1 | AA large text | Lc -18.3 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F3
oklch(88.4% 0.043 294.4)
-
Step 300
300
#C3B7EE
oklch(80.8% 0.078 294.6)
-
Step 400
400
#A591E5
oklch(70.7% 0.122 294)
-
Step 500
500
#9173DE
oklch(63.2% 0.157 294.4)
-
Step 600
600
#7C59CB
oklch(55.7% 0.17 294.4)
-
Step 700
700 (this color)
#6645AD
oklch(48.2% 0.159 294.3)
-
Step 800
800
#553C8E
oklch(42.7% 0.13 294.3)
-
Step 900
900
#463472
oklch(37.7% 0.103 294.3)
-
Step 950
950
#291F43
oklch(27.1% 0.065 294.4)
#6645AD 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) | #005BB0 | 0.107 |
| Deuteranopia (no green cones) | #0F58AB | 0.103 |
| Tritanopia (no blue cones) | #535C72 | 0.127 |
| Achromatopsia (no color) | #595959 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6645AD
#6645AD
oklch(48.2% 0.159 294.3)
- #5E6400
#5E6400
oklch(48.2% 0.108 113.8)
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 #6645AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.043
- Rebecca Purple #663399 ΔE 0.049
- Iris #6258C4 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Blurple #5539CC ΔE 0.064
- Blueberry #464196 ΔE 0.067
- Slate Blue #6A5ACD ΔE 0.068
- Light Indigo #6D5ACF ΔE 0.071
Use #6645AD 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.