#644558
Closest named color: Brownish Purple (#76424E). oklch(43.1% 0.051 342.1), rgb(100, 69, 88).
Aa
White text reads best on this color (8.28:1).
About this color
#644558 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.051 and its hue 342°. 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 8.28:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #644558 |
| RGB | rgb(100, 69, 88) |
| HSL | hsl(323, 18%, 33%) |
| OKLCH | oklch(43.1% 0.051 342.1) |
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 #644558 | 8.28:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #644558 | 2.53:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #644558 text on white | 8.28:1 | AAA | Lc 88.6 | Fine for body text |
| #644558 text on black | 2.53:1 | Fails | Lc -13.6 | 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
#E1D5DC
oklch(88.5% 0.016 341.4)
-
Step 300
300
#CFB9C6
oklch(80.8% 0.031 341.5)
-
Step 400
400
#B695A9
oklch(70.6% 0.048 341.4)
-
Step 500
500
#A47B94
oklch(63.1% 0.061 341.8)
-
Step 600
600
#8F647E
oklch(55.6% 0.066 342.5)
-
Step 700
700
#79536A
oklch(49.1% 0.06 342.6)
-
Step 800
800 (this color)
#644558
oklch(43.1% 0.051 342.1)
-
Step 900
900
#513947
oklch(37.7% 0.04 343.4)
-
Step 950
950
#2F222A
oklch(27.1% 0.024 341.4)
#644558 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) | #464B59 | 0.053 |
| Deuteranopia (no green cones) | #4E5057 | 0.048 |
| Tritanopia (no blue cones) | #68454C | 0.021 |
| Achromatopsia (no color) | #4E4E4E | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644558
#644558
oklch(43.1% 0.051 342.1)
- #355948
#355948
oklch(43.1% 0.051 162.9)
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 #644558, 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 0.062
- Dark Mauve #874C62 ΔE 0.072
- Dusk #4E5481 ΔE 0.075
- YInMn Blue #415A77 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.082
- Twilight #4E518B ΔE 0.088
Use #644558 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.