#640C50
Closest named color: Grape Purple (#5D1451). oklch(34.7% 0.139 339.8), rgb(100, 12, 80).
Aa
White text reads best on this color (12.27:1).
About this color
#640C50 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.139 and its hue 340°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.016 away. White text reads best on it, at 12.27:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.71:1 |
| White text | 12.27:1 |
Values
| HEX | #640C50 |
| RGB | rgb(100, 12, 80) |
| HSL | hsl(314, 79%, 22%) |
| OKLCH | oklch(34.7% 0.139 339.8) |
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 #640C50 | 12.27:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #640C50 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #640C50 text on white | 12.27:1 | AAA | Lc 96.6 | Preferred for body text |
| #640C50 text on black | 1.71:1 | Fails | Lc 0.0 | 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
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F9E2F0
oklch(93.5% 0.031 340.6)
-
Step 200
200
#F4CBE5
oklch(88.5% 0.057 340)
-
Step 300
300
#EEA6D6
oklch(80.9% 0.104 339.7)
-
Step 400
400
#E272C1
oklch(70.6% 0.167 339.7)
-
Step 500
500
#D745B1
oklch(63.1% 0.213 339.9)
-
Step 600
600
#C2169D
oklch(55.6% 0.231 339.8)
-
Step 700
700
#A70086
oklch(49.2% 0.214 339.9)
-
Step 800
800
#880B6D
oklch(42.8% 0.179 339.9)
-
Step 900
900 (this color)
#640C50
oklch(34.7% 0.139 339.8)
-
Step 950
950
#401034
oklch(26.9% 0.088 339.2)
#640C50 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) | #142C52 | 0.155 |
| Deuteranopia (no green cones) | #323A4E | 0.132 |
| Tritanopia (no blue cones) | #6A102E | 0.065 |
| Achromatopsia (no color) | #353535 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640C50
#640C50
oklch(34.7% 0.139 339.8)
- #00462B
#00462B
oklch(34.8% 0.079 159.7)
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 #640C50, closest first.
No curated palette has a color within ΔE 0.04 of #640C50.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.016
- Rich Purple #720058 ΔE 0.033
- Velvet #750851 ΔE 0.038
- Merlot #730039 ΔE 0.053
- Plum Purple #4E0550 ΔE 0.054
- Deep Violet #490648 ΔE 0.065
- Red Purple #820747 ΔE 0.071
- Wine #80013F ΔE 0.071
Use #640C50 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.