#640E44
Closest named color: Grape Purple (#5D1451). oklch(34.2% 0.129 348), rgb(100, 14, 68).
Aa
White text reads best on this color (12.43:1).
About this color
#640E44 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.129 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.028 away. White text reads best on it, at 12.43:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.68:1 |
| White text | 12.43:1 |
Values
| HEX | #640E44 |
| RGB | rgb(100, 14, 68) |
| HSL | hsl(322, 75%, 22%) |
| OKLCH | oklch(34.2% 0.129 348) |
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 #640E44 | 12.43:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #640E44 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #640E44 text on white | 12.43:1 | AAA | Lc 97.0 | Preferred for body text |
| #640E44 text on black | 1.68:1 | 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
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#F9E3ED
oklch(93.6% 0.027 348.3)
-
Step 200
200
#F5CBDF
oklch(88.4% 0.054 348)
-
Step 300
300
#F0A7CC
oklch(80.9% 0.097 347.7)
-
Step 400
400
#E574B1
oklch(70.7% 0.156 348.2)
-
Step 500
500
#DA499E
oklch(63.1% 0.199 348.2)
-
Step 600
600
#C52089
oklch(55.7% 0.216 348.1)
-
Step 700
700
#A90C74
oklch(49% 0.2 348)
-
Step 800
800
#8A135E
oklch(42.8% 0.166 348.5)
-
Step 900
900 (this color)
#640E44
oklch(34.2% 0.129 348)
-
Step 950
950
#41112D
oklch(26.9% 0.082 348)
#640E44 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) | #1D2B45 | 0.145 |
| Deuteranopia (no green cones) | #363942 | 0.127 |
| Tritanopia (no blue cones) | #6C0928 | 0.052 |
| Achromatopsia (no color) | #343434 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640E44
#640E44
oklch(34.2% 0.129 348)
- #004432
#004432
oklch(34.3% 0.069 168.3)
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 #640E44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.028
- Merlot #730039 ΔE 0.038
- Velvet #750851 ΔE 0.042
- Rich Purple #720058 ΔE 0.046
- Burgundy #610023 ΔE 0.055
- Plum Purple #4E0550 ΔE 0.062
- Wine #80013F ΔE 0.063
- Bordeaux #7B002C ΔE 0.066
Use #640E44 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.