#642475
Closest named color: Rebecca Purple (#663399). oklch(39.3% 0.142 318.5), rgb(100, 36, 117).
Aa
White text reads best on this color (10.23:1).
About this color
#642475 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.142 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 0.065 away. White text reads best on it, at 10.23:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #642475 |
| RGB | rgb(100, 36, 117) |
| HSL | hsl(287, 53%, 30%) |
| OKLCH | oklch(39.3% 0.142 318.5) |
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 #642475 | 10.23:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #642475 | 2.05:1 | Fails | Lc 10.9 | Not readable |
| #642475 text on white | 10.23:1 | AAA | Lc 93.1 | Preferred for body text |
| #642475 text on black | 2.05:1 | Fails | Lc -9.4 | 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
#FAF3FC
oklch(97.2% 0.014 318.7)
-
Step 100
100
#F3E4F7
oklch(93.6% 0.03 319.1)
-
Step 200
200
#EACDF3
oklch(88.4% 0.06 318.1)
-
Step 300
300
#DEABED
oklch(81% 0.106 318.4)
-
Step 400
400
#CC7AE4
oklch(70.7% 0.171 318.2)
-
Step 500
500
#BE51DB
oklch(63.1% 0.217 318.6)
-
Step 600
600
#AA2BC9
oklch(55.7% 0.237 318.6)
-
Step 700
700
#911AAE
oklch(49.1% 0.22 318.3)
-
Step 800
800
#761B8D
oklch(42.7% 0.182 318.3)
-
Step 900
900 (this color)
#642475
oklch(39.3% 0.142 318.5)
-
Step 950
950
#381442
oklch(27% 0.09 318.3)
#642475 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) | #053D77 | 0.140 |
| Deuteranopia (no green cones) | #284373 | 0.120 |
| Tritanopia (no blue cones) | #643349 | 0.090 |
| Achromatopsia (no color) | #414141 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642475
#642475
oklch(39.3% 0.142 318.5)
- #1C5400
#1C5400
oklch(39.3% 0.123 138.5)
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 #642475, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.065
- Purple #800080 ΔE 0.065
- Rich Purple #720058 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.066
- Velvet #750851 ΔE 0.075
- Dark Slate Blue #483D8B ΔE 0.079
- Royal Purple #4B006E ΔE 0.079
- Indigo #4B0082 ΔE 0.080
Use #642475 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.