#642957
Closest named color: Grape Purple (#5D1451). oklch(38.2% 0.105 336.7), rgb(100, 41, 87).
Aa
White text reads best on this color (10.51:1).
About this color
#642957 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.105 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.046 away. White text reads best on it, at 10.51:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #642957 |
| RGB | rgb(100, 41, 87) |
| HSL | hsl(313, 42%, 28%) |
| OKLCH | oklch(38.2% 0.105 336.7) |
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 #642957 | 10.51:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #642957 | 1.99:1 | Fails | Lc 10.0 | Not readable |
| #642957 text on white | 10.51:1 | AAA | Lc 93.9 | Preferred for body text |
| #642957 text on black | 1.99:1 | Fails | Lc -8.6 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F4E4EF
oklch(93.5% 0.023 336.8)
-
Step 200
200
#EDCFE4
oklch(88.6% 0.043 336.8)
-
Step 300
300
#E2AED3
oklch(80.9% 0.077 337.1)
-
Step 400
400
#D281BD
oklch(70.7% 0.125 337.1)
-
Step 500
500
#C45EAD
oklch(63.1% 0.161 336.7)
-
Step 600
600
#AF4198
oklch(55.6% 0.175 336.8)
-
Step 700
700
#963282
oklch(49.1% 0.162 336.6)
-
Step 800
800
#7A2B6A
oklch(42.8% 0.134 336.5)
-
Step 900
900 (this color)
#642957
oklch(38.2% 0.105 336.7)
-
Step 950
950
#3A1832
oklch(27% 0.066 337)
#642957 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) | #2A3958 | 0.109 |
| Deuteranopia (no green cones) | #3B4255 | 0.097 |
| Tritanopia (no blue cones) | #692C3C | 0.051 |
| Achromatopsia (no color) | #3F3F3F | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642957
#642957
oklch(38.2% 0.105 336.7)
- #00512E
#00512E
oklch(38.3% 0.092 156.6)
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 #642957, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.046
- Velvet #750851 ΔE 0.053
- Rich Purple #720058 ΔE 0.057
- Merlot #730039 ΔE 0.069
- Purple Brown #673A3F ΔE 0.070
- Red Purple #820747 ΔE 0.072
- Wine #80013F ΔE 0.075
- Brownish Purple #76424E ΔE 0.084
Use #642957 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.