#642E7D
Closest named color: Rebecca Purple (#663399). oklch(41.1% 0.135 313.6), rgb(100, 46, 125).
Aa
White text reads best on this color (9.42:1).
About this color
#642E7D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.135 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 0.047 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #642E7D |
| RGB | rgb(100, 46, 125) |
| HSL | hsl(281, 46%, 34%) |
| OKLCH | oklch(41.1% 0.135 313.6) |
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 #642E7D | 9.42:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #642E7D | 2.22:1 | Fails | Lc 12.7 | Not readable |
| #642E7D text on white | 9.42:1 | AAA | Lc 91.3 | Preferred for body text |
| #642E7D text on black | 2.22:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E4D1EE
oklch(88.5% 0.044 314.1)
-
Step 300
300
#D3B2E5
oklch(80.9% 0.079 313.6)
-
Step 400
400
#BD88D8
oklch(70.8% 0.126 313.7)
-
Step 500
500
#AC68CD
oklch(63.2% 0.161 313.7)
-
Step 600
600
#974CBA
oklch(55.6% 0.176 313.6)
-
Step 700
700
#813CA0
oklch(49.1% 0.164 313.8)
-
Step 800
800 (this color)
#642E7D
oklch(41.1% 0.135 313.6)
-
Step 900
900
#552D68
oklch(37.6% 0.106 313.7)
-
Step 950
950
#321B3D
oklch(27% 0.067 313.9)
#642E7D 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) | #12437F | 0.124 |
| Deuteranopia (no green cones) | #2A477B | 0.108 |
| Tritanopia (no blue cones) | #623C51 | 0.090 |
| Achromatopsia (no color) | #464646 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642E7D
#642E7D
oklch(41.1% 0.135 313.6)
- #2E5700
#2E5700
oklch(41% 0.117 133.6)
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 #642E7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.063
- Purple #800080 ΔE 0.072
- Blueberry #464196 ΔE 0.076
- Rich Purple #720058 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.086
- Dark Magenta #8B008B ΔE 0.090
- Indigo #4B0082 ΔE 0.090
Use #642E7D 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.