#64366E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.104 320.3), rgb(100, 54, 110).
Aa
White text reads best on this color (9.15:1).
About this color
#64366E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.104 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.070 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #64366E |
| RGB | rgb(100, 54, 110) |
| HSL | hsl(289, 34%, 32%) |
| OKLCH | oklch(41.4% 0.104 320.3) |
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 #64366E | 9.15:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #64366E | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #64366E text on white | 9.15:1 | AAA | Lc 90.8 | Preferred for body text |
| #64366E text on black | 2.29:1 | Fails | Lc -11.5 | Not readable |
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 800.
-
Step 50
50
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F1
oklch(93.5% 0.018 320.1)
-
Step 200
200
#E4D2E7
oklch(88.5% 0.034 321.4)
-
Step 300
300
#D3B4D9
oklch(80.8% 0.061 320.8)
-
Step 400
400
#BC8DC6
oklch(70.8% 0.096 320.4)
-
Step 500
500
#AB6FB8
oklch(63.2% 0.125 320.3)
-
Step 600
600
#9656A4
oklch(55.7% 0.135 320.2)
-
Step 700
700
#80458C
oklch(49.1% 0.127 320.7)
-
Step 800
800 (this color)
#64366E
oklch(41.4% 0.104 320.3)
-
Step 900
900
#54325C
oklch(37.6% 0.081 319.8)
-
Step 950
950
#321E36
oklch(27.2% 0.051 320.8)
#64366E 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) | #2D4570 | 0.095 |
| Deuteranopia (no green cones) | #3A4A6C | 0.086 |
| Tritanopia (no blue cones) | #653D4D | 0.064 |
| Achromatopsia (no color) | #484848 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64366E
#64366E
oklch(41.4% 0.104 320.3)
- #28591D
#28591D
oklch(41.5% 0.105 140.1)
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 #64366E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.070
- Rebecca Purple #663399 ΔE 0.073
- Brownish Purple #76424E ΔE 0.081
- Grape Purple #5D1451 ΔE 0.082
- Twilight #4E518B ΔE 0.083
- Purple Brown #673A3F ΔE 0.084
- Velvet #750851 ΔE 0.084
- Rich Purple #720058 ΔE 0.085
Use #64366E 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.