#642457
Closest named color: Grape Purple (#5D1451). oklch(37.5% 0.113 336.3), rgb(100, 36, 87).
Aa
White text reads best on this color (10.87:1).
About this color
#642457 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.113 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.036 away. White text reads best on it, at 10.87:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.93:1 |
| White text | 10.87:1 |
Values
| HEX | #642457 |
| RGB | rgb(100, 36, 87) |
| HSL | hsl(312, 47%, 27%) |
| OKLCH | oklch(37.5% 0.113 336.3) |
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 #642457 | 10.87:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #642457 | 1.93:1 | Fails | Lc 9.3 | Not readable |
| #642457 text on white | 10.87:1 | AAA | Lc 94.6 | Preferred for body text |
| #642457 text on black | 1.93:1 | Fails | Lc -8.0 | 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
#FBF3F8
oklch(97.2% 0.011 339.3)
-
Step 100
100
#F5E4F0
oklch(93.6% 0.024 336.1)
-
Step 200
200
#EECEE5
oklch(88.5% 0.047 336)
-
Step 300
300
#E5ACD5
oklch(80.9% 0.085 336.9)
-
Step 400
400
#D57EC0
oklch(70.7% 0.135 336.5)
-
Step 500
500
#C859B0
oklch(63.1% 0.174 336.6)
-
Step 600
600
#B33A9C
oklch(55.6% 0.19 336.3)
-
Step 700
700
#992B85
oklch(49% 0.176 336.2)
-
Step 800
800
#7D266C
oklch(42.8% 0.145 336.6)
-
Step 900
900 (this color)
#642457
oklch(37.5% 0.113 336.3)
-
Step 950
950
#3B1633
oklch(26.9% 0.072 336.4)
#642457 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) | #253759 | 0.120 |
| Deuteranopia (no green cones) | #394155 | 0.106 |
| Tritanopia (no blue cones) | #69273A | 0.055 |
| Achromatopsia (no color) | #3D3D3D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642457
#642457
oklch(37.5% 0.113 336.3)
- #004F2C
#004F2C
oklch(37.6% 0.091 156.1)
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 #642457, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.036
- Velvet #750851 ΔE 0.046
- Rich Purple #720058 ΔE 0.049
- Merlot #730039 ΔE 0.065
- Red Purple #820747 ΔE 0.070
- Wine #80013F ΔE 0.073
- Plum Purple #4E0550 ΔE 0.077
- Purple Brown #673A3F ΔE 0.079
Use #642457 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.