#644A5B
Closest named color: Brownish Purple (#76424E). oklch(44.3% 0.044 339.7), rgb(100, 74, 91).
Aa
White text reads best on this color (7.85:1).
About this color
#644A5B is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.044 and its hue 340°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.039 away. White text reads best on it, at 7.85:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #644A5B |
| RGB | rgb(100, 74, 91) |
| HSL | hsl(321, 15%, 34%) |
| OKLCH | oklch(44.3% 0.044 339.7) |
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 #644A5B | 7.85:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #644A5B | 2.67:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #644A5B text on white | 7.85:1 | AAA | Lc 87.2 | Fine for body text |
| #644A5B text on black | 2.67:1 | Fails | Lc -14.9 | 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
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#E0D6DC
oklch(88.6% 0.014 340.6)
-
Step 300
300
#CDBBC6
oklch(81% 0.025 340.4)
-
Step 400
400
#B397A9
oklch(70.7% 0.041 339.5)
-
Step 500
500
#A07E94
oklch(63.3% 0.052 339.7)
-
Step 600
600
#8A677E
oklch(55.7% 0.055 339.6)
-
Step 700
700
#75556A
oklch(49% 0.052 339.8)
-
Step 800
800 (this color)
#644A5B
oklch(44.3% 0.044 339.7)
-
Step 900
900
#4E3B47
oklch(37.7% 0.033 340.6)
-
Step 950
950
#2E222A
oklch(26.9% 0.023 338.9)
#644A5B 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) | #4B4F5C | 0.043 |
| Deuteranopia (no green cones) | #51535A | 0.040 |
| Tritanopia (no blue cones) | #674A50 | 0.019 |
| Achromatopsia (no color) | #525252 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644A5B
#644A5B
oklch(44.3% 0.044 339.7)
- #3E5B4B
#3E5B4B
oklch(44.3% 0.043 159.8)
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 #644A5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.039
- Dusty Grape #545775 ΔE 0.052
- Purple Brown #673A3F ΔE 0.052
- Dark Mauve #874C62 ΔE 0.067
- Dusk #4E5481 ΔE 0.068
- YInMn Blue #415A77 ΔE 0.072
- Slate #516572 ΔE 0.079
- Twilight #4E518B ΔE 0.083
Use #644A5B 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.