#642544
Closest named color: Grape Purple (#5D1451). oklch(36.7% 0.098 352.4), rgb(100, 37, 68).
Aa
White text reads best on this color (11.11:1).
About this color
#642544 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.098 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.051 away. White text reads best on it, at 11.11:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #642544 |
| RGB | rgb(100, 37, 68) |
| HSL | hsl(330, 46%, 27%) |
| OKLCH | oklch(36.7% 0.098 352.4) |
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 #642544 | 11.11:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #642544 | 1.88:1 | Fails | Lc 8.8 | Not readable |
| #642544 text on white | 11.11:1 | AAA | Lc 95.1 | Preferred for body text |
| #642544 text on black | 1.88:1 | Fails | Lc -7.5 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E4EB
oklch(93.5% 0.022 351.9)
-
Step 200
200
#F0CFDC
oklch(88.6% 0.041 352.2)
-
Step 300
300
#E7ADC5
oklch(80.8% 0.074 352.3)
-
Step 400
400
#D981A8
oklch(70.8% 0.118 352.5)
-
Step 500
500
#CC5E92
oklch(63.2% 0.15 352.7)
-
Step 600
600
#B7417D
oklch(55.7% 0.164 352.3)
-
Step 700
700
#9D3269
oklch(49.1% 0.152 352.4)
-
Step 800
800
#802B56
oklch(42.8% 0.126 352.4)
-
Step 900
900 (this color)
#642544
oklch(36.7% 0.098 352.4)
-
Step 950
950
#3D1829
oklch(27% 0.062 353.3)
#642544 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) | #2E3445 | 0.107 |
| Deuteranopia (no green cones) | #3F4042 | 0.098 |
| Tritanopia (no blue cones) | #6B2231 | 0.034 |
| Achromatopsia (no color) | #3C3C3C | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642544
#642544
oklch(36.7% 0.098 352.4)
- #004B3B
#004B3B
oklch(36.8% 0.071 172.3)
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 #642544, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.051
- Merlot #730039 ΔE 0.051
- Velvet #750851 ΔE 0.057
- Purple Brown #673A3F ΔE 0.059
- Bordeaux #7B002C ΔE 0.064
- Wine #80013F ΔE 0.065
- Rich Purple #720058 ΔE 0.067
- Red Purple #820747 ΔE 0.067
Use #642544 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.