#642773
Closest named color: Rebecca Purple (#663399). oklch(39.5% 0.135 319.2), rgb(100, 39, 115).
Aa
White text reads best on this color (10.09:1).
About this color
#642773 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.135 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.066 away. White text reads best on it, at 10.09:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.07:1 |
| White text | 10.09:1 |
Values
| HEX | #642773 |
| RGB | rgb(100, 39, 115) |
| HSL | hsl(288, 49%, 30%) |
| OKLCH | oklch(39.5% 0.135 319.2) |
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 #642773 | 10.09:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #642773 | 2.07:1 | Fails | Lc 11.1 | Not readable |
| #642773 text on white | 10.09:1 | AAA | Lc 92.8 | Preferred for body text |
| #642773 text on black | 2.07:1 | Fails | Lc -9.6 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F3E4F7
oklch(93.6% 0.03 319.1)
-
Step 200
200
#EACEF1
oklch(88.5% 0.056 319.5)
-
Step 300
300
#DDACEA
oklch(80.9% 0.1 319.1)
-
Step 400
400
#CB7CE0
oklch(70.7% 0.163 319)
-
Step 500
500
#BD55D7
oklch(63.2% 0.208 319.1)
-
Step 600
600
#A832C4
oklch(55.6% 0.225 319.1)
-
Step 700
700
#9022A9
oklch(49.1% 0.209 319.2)
-
Step 800
800
#752089
oklch(42.7% 0.173 319.1)
-
Step 900
900 (this color)
#642773
oklch(39.5% 0.135 319.2)
-
Step 950
950
#381540
oklch(27% 0.086 319.8)
#642773 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) | #113E75 | 0.132 |
| Deuteranopia (no green cones) | #2C4471 | 0.114 |
| Tritanopia (no blue cones) | #643449 | 0.085 |
| Achromatopsia (no color) | #424242 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642773
#642773
oklch(39.5% 0.135 319.2)
- #195500
#195500
oklch(39.5% 0.125 139.3)
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 #642773, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.066
- Rich Purple #720058 ΔE 0.066
- Purple #800080 ΔE 0.069
- Velvet #750851 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.077
- Royal Purple #4B006E ΔE 0.084
- Indigo #4B0082 ΔE 0.086
Use #642773 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.