#644E50
Closest named color: Brownish Purple (#76424E). oklch(44.7% 0.03 12.2), rgb(100, 78, 80).
Aa
White text reads best on this color (7.64:1).
About this color
#644E50 is a dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Brownish Purple (#76424E), ΔE 0.044 away. White text reads best on it, at 7.64:1.
| Hue family | Neutrals |
| Lightness | dark (45%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #644E50 |
| RGB | rgb(100, 78, 80) |
| HSL | hsl(355, 12%, 35%) |
| OKLCH | oklch(44.7% 0.03 12.2) |
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 #644E50 | 7.64:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #644E50 | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #644E50 text on white | 7.64:1 | AAA | Lc 86.5 | Fine for body text |
| #644E50 text on black | 2.74:1 | Fails | Lc -15.5 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EDE8E9
oklch(93.5% 0.006 3.3)
-
Step 200
200
#DFD7D7
oklch(88.6% 0.009 17.3)
-
Step 300
300
#CCBCBD
oklch(80.9% 0.018 13.2)
-
Step 400
400
#B19A9C
oklch(70.7% 0.027 11.9)
-
Step 500
500
#9E8184
oklch(63.1% 0.036 11.1)
-
Step 600
600
#886A6D
oklch(55.5% 0.039 11.7)
-
Step 700
700
#74595B
oklch(49.2% 0.036 13.5)
-
Step 800
800 (this color)
#644E50
oklch(44.7% 0.03 12.2)
-
Step 900
900
#4D3D3E
oklch(37.7% 0.022 14)
-
Step 950
950
#2D2424
oklch(27.1% 0.014 18)
#644E50 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) | #515150 | 0.033 |
| Deuteranopia (no green cones) | #565550 | 0.030 |
| Tritanopia (no blue cones) | #684C4F | 0.008 |
| Achromatopsia (no color) | #535353 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E50
#644E50
oklch(44.7% 0.03 12.2)
- #415A59
#415A59
oklch(44.7% 0.03 193)
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 #644E50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.044
- Purple Brown #673A3F ΔE 0.054
- Dusty Grape #545775 ΔE 0.061
- Dark Mauve #874C62 ΔE 0.072
- Slate #516572 ΔE 0.074
- YInMn Blue #415A77 ΔE 0.077
- Milk Chocolate #7F4E1E ΔE 0.078
- Dim Gray #696969 ΔE 0.079
Use #644E50 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.