#642483
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.156 312.3), rgb(100, 36, 131).
Aa
White text reads best on this color (9.89:1).
About this color
#642483 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.156 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.045 away. White text reads best on it, at 9.89:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.12:1 |
| White text | 9.89:1 |
Values
| HEX | #642483 |
| RGB | rgb(100, 36, 131) |
| HSL | hsl(280, 57%, 33%) |
| OKLCH | oklch(40.2% 0.156 312.3) |
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 #642483 | 9.89:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #642483 | 2.12:1 | Fails | Lc 11.8 | Not readable |
| #642483 text on white | 9.89:1 | AAA | Lc 92.2 | Preferred for body text |
| #642483 text on black | 2.12:1 | Fails | Lc -10.2 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F7
oklch(93.6% 0.027 312.6)
-
Step 200
200
#E5D0F2
oklch(88.5% 0.051 312.6)
-
Step 300
300
#D5B0EB
oklch(80.9% 0.09 312.7)
-
Step 400
400
#BF84E1
oklch(70.7% 0.145 312.3)
-
Step 500
500
#AF61D9
oklch(63.2% 0.186 312.3)
-
Step 600
600
#9A43C6
oklch(55.6% 0.202 312.2)
-
Step 700
700
#8433AB
oklch(49.1% 0.188 312.5)
-
Step 800
800 (this color)
#642483
oklch(40.2% 0.156 312.3)
-
Step 900
900
#57296F
oklch(37.7% 0.122 312.3)
-
Step 950
950
#331941
oklch(27% 0.077 312.4)
#642483 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) | #004086 | 0.139 |
| Deuteranopia (no green cones) | #1A4481 | 0.129 |
| Tritanopia (no blue cones) | #603851 | 0.104 |
| Achromatopsia (no color) | #434343 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642483
#642483
oklch(40.2% 0.156 312.3)
- #2F5400
#2F5400
oklch(40.2% 0.113 132.5)
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 #642483, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.045
- Purple #800080 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.072
- Indigo #4B0082 ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.083
- Dark Magenta #8B008B ΔE 0.083
- Blueberry #464196 ΔE 0.084
- Royal Purple #4B006E ΔE 0.084
Use #642483 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.