#644B5D
Closest named color: Brownish Purple (#76424E). oklch(44.6% 0.043 336.7), rgb(100, 75, 93).
Aa
White text reads best on this color (7.75:1).
About this color
#644B5D is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.043 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.041 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #644B5D |
| RGB | rgb(100, 75, 93) |
| HSL | hsl(317, 14%, 34%) |
| OKLCH | oklch(44.6% 0.043 336.7) |
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 #644B5D | 7.75:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #644B5D | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #644B5D text on white | 7.75:1 | AAA | Lc 86.9 | Fine for body text |
| #644B5D text on black | 2.70:1 | Fails | Lc -15.2 | 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
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#E0D6DC
oklch(88.6% 0.014 340.6)
-
Step 300
300
#CCBBC7
oklch(81% 0.025 336.2)
-
Step 400
400
#B297AA
oklch(70.6% 0.041 336.8)
-
Step 500
500
#9E7E95
oklch(63.1% 0.051 336.5)
-
Step 600
600
#896780
oklch(55.6% 0.056 336.1)
-
Step 700
700
#74556C
oklch(49% 0.053 335.9)
-
Step 800
800 (this color)
#644B5D
oklch(44.6% 0.043 336.7)
-
Step 900
900
#4E3B48
oklch(37.8% 0.034 338.2)
-
Step 950
950
#2D232A
oklch(27.1% 0.019 337.2)
#644B5D 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) | #4B505E | 0.043 |
| Deuteranopia (no green cones) | #51545C | 0.040 |
| Tritanopia (no blue cones) | #674C51 | 0.021 |
| Achromatopsia (no color) | #525252 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644B5D
#644B5D
oklch(44.6% 0.043 336.7)
- #405C4A
#405C4A
oklch(44.7% 0.045 155.9)
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 #644B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.041
- Dusty Grape #545775 ΔE 0.049
- Purple Brown #673A3F ΔE 0.056
- Dusk #4E5481 ΔE 0.065
- Dark Mauve #874C62 ΔE 0.066
- YInMn Blue #415A77 ΔE 0.069
- Slate #516572 ΔE 0.076
- Twilight #4E518B ΔE 0.080
Use #644B5D 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.