#642F57
Closest named color: Purple Brown (#673A3F). oklch(39.1% 0.094 337.4), rgb(100, 47, 87).
Aa
White text reads best on this color (10.06:1).
About this color
#642F57 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.094 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.058 away. White text reads best on it, at 10.06:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.08:1 |
| White text | 10.06:1 |
Values
| HEX | #642F57 |
| RGB | rgb(100, 47, 87) |
| HSL | hsl(315, 36%, 29%) |
| OKLCH | oklch(39.1% 0.094 337.4) |
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 #642F57 | 10.06:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #642F57 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #642F57 text on white | 10.06:1 | AAA | Lc 93.0 | Preferred for body text |
| #642F57 text on black | 2.08:1 | Fails | Lc -9.5 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F3E5EF
oklch(93.6% 0.02 335.7)
-
Step 200
200
#EBD0E2
oklch(88.5% 0.038 338.1)
-
Step 300
300
#DFB0D1
oklch(80.9% 0.07 337.3)
-
Step 400
400
#CE85BA
oklch(70.8% 0.112 337.4)
-
Step 500
500
#BF64A8
oklch(63.1% 0.143 337.5)
-
Step 600
600
#AA4894
oklch(55.6% 0.157 337.1)
-
Step 700
700
#92397E
oklch(49.1% 0.146 337.3)
-
Step 800
800
#763066
oklch(42.6% 0.12 337.2)
-
Step 900
900 (this color)
#642F57
oklch(39.1% 0.094 337.4)
-
Step 950
950
#381A31
oklch(27% 0.059 336.5)
#642F57 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) | #303D58 | 0.097 |
| Deuteranopia (no green cones) | #3F4556 | 0.087 |
| Tritanopia (no blue cones) | #69313F | 0.045 |
| Achromatopsia (no color) | #424242 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642F57
#642F57
oklch(39.1% 0.094 337.4)
- #005331
#005331
oklch(38.9% 0.091 157.8)
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 #642F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.058
- Grape Purple #5D1451 ΔE 0.059
- Velvet #750851 ΔE 0.063
- Rich Purple #720058 ΔE 0.070
- Brownish Purple #76424E ΔE 0.071
- Merlot #730039 ΔE 0.077
- Red Purple #820747 ΔE 0.077
- Wine #80013F ΔE 0.080
Use #642F57 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.