#642377
Closest named color: Rebecca Purple (#663399). oklch(39.3% 0.145 317.7), rgb(100, 35, 119).
Aa
White text reads best on this color (10.25:1).
About this color
#642377 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.145 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.063 away. White text reads best on it, at 10.25:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #642377 |
| RGB | rgb(100, 35, 119) |
| HSL | hsl(286, 55%, 30%) |
| OKLCH | oklch(39.3% 0.145 317.7) |
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 #642377 | 10.25:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #642377 | 2.04:1 | Fails | Lc 10.9 | Not readable |
| #642377 text on white | 10.25:1 | AAA | Lc 93.1 | Preferred for body text |
| #642377 text on black | 2.04:1 | 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
#F3E4F8
oklch(93.7% 0.031 317.7)
-
Step 200
200
#EACDF4
oklch(88.5% 0.061 317.4)
-
Step 300
300
#DEAAEF
oklch(80.9% 0.11 317.7)
-
Step 400
400
#CC79E6
oklch(70.6% 0.174 317.7)
-
Step 500
500
#BE50DF
oklch(63.2% 0.222 317.6)
-
Step 600
600
#A928CC
oklch(55.5% 0.242 317.6)
-
Step 700
700
#9116B1
oklch(49.1% 0.225 317.5)
-
Step 800
800
#76198F
oklch(42.7% 0.186 317.7)
-
Step 900
900 (this color)
#642377
oklch(39.3% 0.145 317.7)
-
Step 950
950
#381343
oklch(26.9% 0.093 317.7)
#642377 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) | #003D79 | 0.143 |
| Deuteranopia (no green cones) | #264375 | 0.123 |
| Tritanopia (no blue cones) | #63334A | 0.092 |
| Achromatopsia (no color) | #414141 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642377
#642377
oklch(39.3% 0.145 317.7)
- #1F5300
#1F5300
oklch(39.1% 0.12 137.7)
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 #642377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.063
- Purple #800080 ΔE 0.064
- Rich Purple #720058 ΔE 0.068
- Grape Purple #5D1451 ΔE 0.069
- Velvet #750851 ΔE 0.077
- Indigo #4B0082 ΔE 0.078
- Royal Purple #4B006E ΔE 0.078
- Dark Slate Blue #483D8B ΔE 0.079
Use #642377 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.