#644A48
Closest named color: Brownish Purple (#76424E). oklch(43.6% 0.036 23.7), rgb(100, 74, 72).
Aa
White text reads best on this color (8.03:1).
About this color
#644A48 is a dark, muted red. In OKLCH its lightness is 44%, its chroma 0.036 and its hue 24°. 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 8.03:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #644A48 |
| RGB | rgb(100, 74, 72) |
| HSL | hsl(4, 16%, 34%) |
| OKLCH | oklch(43.6% 0.036 23.7) |
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 #644A48 | 8.03:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #644A48 | 2.61:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #644A48 text on white | 8.03:1 | AAA | Lc 87.8 | Fine for body text |
| #644A48 text on black | 2.61:1 | Fails | Lc -14.4 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE8E8
oklch(93.6% 0.007 17.3)
-
Step 200
200
#E1D6D5
oklch(88.5% 0.012 23.7)
-
Step 300
300
#CEBCBA
oklch(81% 0.021 25.2)
-
Step 400
400
#B59997
oklch(70.7% 0.034 22.8)
-
Step 500
500
#A2807D
oklch(63.1% 0.042 24.2)
-
Step 600
600
#8D6966
oklch(55.6% 0.047 24.1)
-
Step 700
700
#785755
oklch(49.1% 0.044 22.7)
-
Step 800
800 (this color)
#644A48
oklch(43.6% 0.036 23.7)
-
Step 900
900
#503C3A
oklch(37.7% 0.029 25.1)
-
Step 950
950
#2F2322
oklch(27% 0.019 23.9)
#644A48 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) | #4F4D48 | 0.037 |
| Deuteranopia (no green cones) | #555248 | 0.034 |
| Tritanopia (no blue cones) | #6A474A | 0.015 |
| Achromatopsia (no color) | #505050 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644A48
#644A48
oklch(43.6% 0.036 23.7)
- #39585A
#39585A
oklch(43.7% 0.037 201)
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 #644A48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.042
- Purple Brown #673A3F ΔE 0.043
- Mud Brown #60460F ΔE 0.070
- Dusty Grape #545775 ΔE 0.073
- Milk Chocolate #7F4E1E ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.078
- Dark Mauve #874C62 ΔE 0.079
- Dark Slate Gray #2F4F4F ΔE 0.081
Use #644A48 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.