#64307B
Closest named color: Rebecca Purple (#663399). oklch(41.3% 0.13 314.2), rgb(100, 48, 123).
Aa
White text reads best on this color (9.33:1).
About this color
#64307B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.130 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.049 away. White text reads best on it, at 9.33:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.25:1 |
| White text | 9.33:1 |
Values
| HEX | #64307B |
| RGB | rgb(100, 48, 123) |
| HSL | hsl(282, 44%, 34%) |
| OKLCH | oklch(41.3% 0.13 314.2) |
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 #64307B | 9.33:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #64307B | 2.25:1 | Fails | Lc 12.9 | Not readable |
| #64307B text on white | 9.33:1 | AAA | Lc 91.1 | Preferred for body text |
| #64307B text on black | 2.25:1 | Fails | Lc -11.2 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E4D1ED
oklch(88.5% 0.043 315)
-
Step 300
300
#D3B3E3
oklch(81% 0.075 314.4)
-
Step 400
400
#BC89D5
oklch(70.7% 0.121 314.1)
-
Step 500
500
#AB69CA
oklch(63.1% 0.155 314.1)
-
Step 600
600
#964EB7
oklch(55.6% 0.169 313.9)
-
Step 700
700
#803E9D
oklch(49% 0.157 314.2)
-
Step 800
800 (this color)
#64307B
oklch(41.3% 0.13 314.2)
-
Step 900
900
#552E66
oklch(37.6% 0.101 314.7)
-
Step 950
950
#321C3C
oklch(27.1% 0.064 314.5)
#64307B 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) | #19447D | 0.118 |
| Deuteranopia (no green cones) | #2E4879 | 0.103 |
| Tritanopia (no blue cones) | #623D50 | 0.087 |
| Achromatopsia (no color) | #474747 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64307B
#64307B
oklch(41.3% 0.13 314.2)
- #2D5800
#2D5800
oklch(41.3% 0.119 134.2)
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 #64307B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.062
- Purple #800080 ΔE 0.075
- Blueberry #464196 ΔE 0.076
- Rich Purple #720058 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.086
- Twilight #4E518B ΔE 0.088
- Velvet #750851 ΔE 0.090
Use #64307B 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.