#644657
Closest named color: Brownish Purple (#76424E). oklch(43.3% 0.048 344.3), rgb(100, 70, 87).
Aa
White text reads best on this color (8.21:1).
About this color
#644657 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.048 and its hue 344°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.036 away. White text reads best on it, at 8.21:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #644657 |
| RGB | rgb(100, 70, 87) |
| HSL | hsl(326, 18%, 33%) |
| OKLCH | oklch(43.3% 0.048 344.3) |
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 #644657 | 8.21:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #644657 | 2.55:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #644657 text on white | 8.21:1 | AAA | Lc 88.3 | Fine for body text |
| #644657 text on black | 2.55:1 | Fails | Lc -13.8 | 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 800.
-
Step 50
50
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E1D5DB
oklch(88.4% 0.015 345.6)
-
Step 300
300
#CFBAC5
oklch(81% 0.028 344.8)
-
Step 400
400
#B696A7
oklch(70.7% 0.045 345.1)
-
Step 500
500
#A37C92
oklch(63.1% 0.057 344)
-
Step 600
600
#8E657C
oklch(55.7% 0.062 344.6)
-
Step 700
700
#795369
oklch(49.1% 0.06 343.9)
-
Step 800
800 (this color)
#644657
oklch(43.3% 0.048 344.3)
-
Step 900
900
#503A46
oklch(37.7% 0.036 345.1)
-
Step 950
950
#2F2229
oklch(27% 0.023 345.2)
#644657 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) | #484C58 | 0.049 |
| Deuteranopia (no green cones) | #4F5156 | 0.047 |
| Tritanopia (no blue cones) | #68464C | 0.019 |
| Achromatopsia (no color) | #4F4F4F | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644657
#644657
oklch(43.3% 0.048 344.3)
- #36594A
#36594A
oklch(43.2% 0.048 165.3)
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 #644657, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.036
- Purple Brown #673A3F ΔE 0.042
- Dusty Grape #545775 ΔE 0.061
- Dark Mauve #874C62 ΔE 0.071
- Dusk #4E5481 ΔE 0.076
- YInMn Blue #415A77 ΔE 0.080
- Charcoal Grey #3C4142 ΔE 0.082
- Dark Slate Gray #2F4F4F ΔE 0.088
Use #644657 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.