#64287A
Closest named color: Rebecca Purple (#663399). oklch(40.1% 0.141 315.7), rgb(100, 40, 122).
Aa
White text reads best on this color (9.87:1).
About this color
#64287A is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.141 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.054 away. White text reads best on it, at 9.87:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #64287A |
| RGB | rgb(100, 40, 122) |
| HSL | hsl(284, 51%, 32%) |
| OKLCH | oklch(40.1% 0.141 315.7) |
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 #64287A | 9.87:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #64287A | 2.12:1 | Fails | Lc 11.7 | Not readable |
| #64287A text on white | 9.87:1 | AAA | Lc 92.3 | Preferred for body text |
| #64287A text on black | 2.12:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F2E4F8
oklch(93.6% 0.031 315.9)
-
Step 200
200
#E9CEF4
oklch(88.6% 0.059 316.2)
-
Step 300
300
#DBACEF
oklch(80.9% 0.105 315.6)
-
Step 400
400
#C97CE7
oklch(70.8% 0.169 315.9)
-
Step 500
500
#BA54E0
oklch(63.2% 0.216 315.7)
-
Step 600
600
#A52FCD
oklch(55.5% 0.235 315.7)
-
Step 700
700
#8E1EB2
oklch(49.2% 0.219 315.8)
-
Step 800
800
#731E90
oklch(42.7% 0.181 315.6)
-
Step 900
900 (this color)
#64287A
oklch(40.1% 0.141 315.7)
-
Step 950
950
#371543
oklch(27.1% 0.089 316.3)
#64287A 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) | #06407C | 0.135 |
| Deuteranopia (no green cones) | #274578 | 0.117 |
| Tritanopia (no blue cones) | #63374D | 0.092 |
| Achromatopsia (no color) | #434343 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64287A
#64287A
oklch(40.1% 0.141 315.7)
- #275500
#275500
oklch(40.1% 0.118 135.7)
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 #64287A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.054
- Purple #800080 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.071
- Rich Purple #720058 ΔE 0.075
- Grape Purple #5D1451 ΔE 0.077
- Indigo #4B0082 ΔE 0.082
- Velvet #750851 ΔE 0.083
- Blueberry #464196 ΔE 0.086
Use #64287A 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.