#643157
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.09 337.7), rgb(100, 49, 87).
Aa
White text reads best on this color (9.91:1).
About this color
#643157 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.090 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.054 away. White text reads best on it, at 9.91:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #643157 |
| RGB | rgb(100, 49, 87) |
| HSL | hsl(315, 34%, 29%) |
| OKLCH | oklch(39.4% 0.09 337.7) |
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 #643157 | 9.91:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #643157 | 2.11:1 | Fails | Lc 11.3 | Not readable |
| #643157 text on white | 9.91:1 | AAA | Lc 92.7 | Preferred for body text |
| #643157 text on black | 2.11:1 | Fails | Lc -9.8 | 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
#F3E5EE
oklch(93.6% 0.019 338.7)
-
Step 200
200
#EAD0E2
oklch(88.4% 0.037 337)
-
Step 300
300
#DEB0D0
oklch(80.8% 0.068 337.6)
-
Step 400
400
#CC86B8
oklch(70.7% 0.107 337.9)
-
Step 500
500
#BD66A7
oklch(63.1% 0.137 337.4)
-
Step 600
600
#A84B92
oklch(55.6% 0.15 337.4)
-
Step 700
700
#903B7C
oklch(49% 0.14 337.6)
-
Step 800
800
#753265
oklch(42.7% 0.115 337.5)
-
Step 900
900 (this color)
#643157
oklch(39.4% 0.09 337.7)
-
Step 950
950
#381B30
oklch(27.1% 0.056 338.3)
#643157 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) | #323E58 | 0.093 |
| Deuteranopia (no green cones) | #404656 | 0.084 |
| Tritanopia (no blue cones) | #693340 | 0.043 |
| Achromatopsia (no color) | #434343 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643157
#643157
oklch(39.4% 0.09 337.7)
- #055432
#055432
oklch(39.4% 0.091 157.4)
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 #643157, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.054
- Grape Purple #5D1451 ΔE 0.064
- Brownish Purple #76424E ΔE 0.067
- Velvet #750851 ΔE 0.067
- Rich Purple #720058 ΔE 0.074
- Red Purple #820747 ΔE 0.079
- Merlot #730039 ΔE 0.080
- Wine #80013F ΔE 0.082
Use #643157 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.