#644F5B
Closest named color: Brownish Purple (#76424E). oklch(45.3% 0.033 343.2), rgb(100, 79, 91).
Aa
White text reads best on this color (7.46:1).
About this color
#644F5B is a medium-dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.033 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.045 away. White text reads best on it, at 7.46:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #644F5B |
| RGB | rgb(100, 79, 91) |
| HSL | hsl(326, 12%, 35%) |
| OKLCH | oklch(45.3% 0.033 343.2) |
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 #644F5B | 7.46:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #644F5B | 2.81:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #644F5B text on white | 7.46:1 | AAA | Lc 86.0 | Fine for body text |
| #644F5B text on black | 2.81:1 | Fails | Lc -16.1 | Dividers and decoration only |
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 800.
-
Step 50
50
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#DFD6DB
oklch(88.5% 0.012 342.7)
-
Step 300
300
#CABCC4
oklch(80.9% 0.019 342.1)
-
Step 400
400
#AF99A6
oklch(70.6% 0.032 341.7)
-
Step 500
500
#9C8090
oklch(63.1% 0.041 343.1)
-
Step 600
600
#86697A
oklch(55.5% 0.044 342.6)
-
Step 700
700
#725867
oklch(49.2% 0.041 343.2)
-
Step 800
800 (this color)
#644F5B
oklch(45.3% 0.033 343.2)
-
Step 900
900
#4C3C45
oklch(37.7% 0.027 343.6)
-
Step 950
950
#2C2328
oklch(26.8% 0.016 343.8)
#644F5B 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) | #50535B | 0.034 |
| Deuteranopia (no green cones) | #55565A | 0.032 |
| Tritanopia (no blue cones) | #674F53 | 0.014 |
| Achromatopsia (no color) | #555555 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644F5B
#644F5B
oklch(45.3% 0.033 343.2)
- #455C51
#455C51
oklch(45.2% 0.033 164.1)
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 #644F5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.045
- Dusty Grape #545775 ΔE 0.047
- Purple Brown #673A3F ΔE 0.062
- Dark Mauve #874C62 ΔE 0.066
- YInMn Blue #415A77 ΔE 0.066
- Slate #516572 ΔE 0.067
- Dusk #4E5481 ΔE 0.068
- Dim Gray #696969 ΔE 0.075
Use #644F5B 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.