#644C5D
Closest named color: Brownish Purple (#76424E). oklch(44.8% 0.041 337.1), rgb(100, 76, 93).
Aa
White text reads best on this color (7.68:1).
About this color
#644C5D is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.041 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.042 away. White text reads best on it, at 7.68:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #644C5D |
| RGB | rgb(100, 76, 93) |
| HSL | hsl(318, 14%, 35%) |
| OKLCH | oklch(44.8% 0.041 337.1) |
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 #644C5D | 7.68:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #644C5D | 2.73:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #644C5D text on white | 7.68:1 | AAA | Lc 86.7 | Fine for body text |
| #644C5D text on black | 2.73:1 | Fails | Lc -15.4 | 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
#DFD6DC
oklch(88.5% 0.013 337.6)
-
Step 300
300
#CBBBC6
oklch(80.9% 0.023 336.9)
-
Step 400
400
#B198A9
oklch(70.7% 0.038 337.7)
-
Step 500
500
#9E7E94
oklch(63.1% 0.05 337.8)
-
Step 600
600
#88677F
oklch(55.5% 0.054 336.4)
-
Step 700
700
#74566B
oklch(49.2% 0.05 337.7)
-
Step 800
800 (this color)
#644C5D
oklch(44.8% 0.041 337.1)
-
Step 900
900
#4D3B48
oklch(37.7% 0.033 336.4)
-
Step 950
950
#2D232A
oklch(27.1% 0.019 337.2)
#644C5D 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) | #4C515E | 0.041 |
| Deuteranopia (no green cones) | #52545C | 0.037 |
| Tritanopia (no blue cones) | #674D52 | 0.020 |
| Achromatopsia (no color) | #535353 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644C5D
#644C5D
oklch(44.8% 0.041 337.1)
- #415C4C
#415C4C
oklch(44.8% 0.042 158.2)
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 #644C5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.042
- Dusty Grape #545775 ΔE 0.047
- Purple Brown #673A3F ΔE 0.058
- Dusk #4E5481 ΔE 0.065
- Dark Mauve #874C62 ΔE 0.065
- YInMn Blue #415A77 ΔE 0.068
- Slate #516572 ΔE 0.074
- Twilight #4E518B ΔE 0.080
Use #644C5D 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.