#644B61
Closest named color: Brownish Purple (#76424E). oklch(44.7% 0.048 330.4), rgb(100, 75, 97).
Aa
White text reads best on this color (7.71:1).
About this color
#644B61 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.048 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.044 away. White text reads best on it, at 7.71:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #644B61 |
| RGB | rgb(100, 75, 97) |
| HSL | hsl(307, 14%, 34%) |
| OKLCH | oklch(44.7% 0.048 330.4) |
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 #644B61 | 7.71:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #644B61 | 2.72:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #644B61 text on white | 7.71:1 | AAA | Lc 86.8 | Fine for body text |
| #644B61 text on black | 2.72:1 | Fails | Lc -15.3 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#DFD6DE
oklch(88.6% 0.015 329.1)
-
Step 300
300
#CCBAC9
oklch(80.8% 0.029 331.3)
-
Step 400
400
#B197AE
oklch(70.7% 0.044 329.8)
-
Step 500
500
#9E7D9A
oklch(63.1% 0.058 330.3)
-
Step 600
600
#896684
oklch(55.6% 0.062 331.3)
-
Step 700
700
#745570
oklch(49.2% 0.057 330.9)
-
Step 800
800 (this color)
#644B61
oklch(44.7% 0.048 330.4)
-
Step 900
900
#4D3B4B
oklch(37.8% 0.036 330)
-
Step 950
950
#2D222C
oklch(26.9% 0.024 329.2)
#644B61 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) | #4A5162 | 0.045 |
| Deuteranopia (no green cones) | #505460 | 0.041 |
| Tritanopia (no blue cones) | #664C53 | 0.025 |
| Achromatopsia (no color) | #535353 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644B61
#644B61
oklch(44.7% 0.048 330.4)
- #415C47
#415C47
oklch(44.7% 0.047 151)
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 #644B61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.044
- Dusty Grape #545775 ΔE 0.045
- Purple Brown #673A3F ΔE 0.060
- Dusk #4E5481 ΔE 0.060
- Dark Mauve #874C62 ΔE 0.065
- YInMn Blue #415A77 ΔE 0.067
- Twilight #4E518B ΔE 0.074
- Slate #516572 ΔE 0.076
Use #644B61 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.