#644F48
Closest named color: Brownish Purple (#76424E). oklch(44.7% 0.031 39.2), rgb(100, 79, 72).
Aa
White text reads best on this color (7.62:1).
About this color
#644F48 is a dark, muted red. In OKLCH its lightness is 45%, its chroma 0.031 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.051 away. White text reads best on it, at 7.62:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #644F48 |
| RGB | rgb(100, 79, 72) |
| HSL | hsl(15, 16%, 34%) |
| OKLCH | oklch(44.7% 0.031 39.2) |
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 #644F48 | 7.62:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #644F48 | 2.75:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #644F48 text on white | 7.62:1 | AAA | Lc 86.5 | Fine for body text |
| #644F48 text on black | 2.75:1 | Fails | Lc -15.6 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E7
oklch(93.7% 0.005 48.7)
-
Step 200
200
#DFD7D4
oklch(88.5% 0.01 41.9)
-
Step 300
300
#CCBDB8
oklch(80.9% 0.018 39.4)
-
Step 400
400
#B19B94
oklch(70.7% 0.028 38.4)
-
Step 500
500
#9E8279
oklch(63% 0.037 38.6)
-
Step 600
600
#896C62
oklch(55.7% 0.04 39.9)
-
Step 700
700
#745A51
oklch(49.1% 0.037 40)
-
Step 800
800 (this color)
#644F48
oklch(44.7% 0.031 39.2)
-
Step 900
900
#4D3D38
oklch(37.6% 0.024 38.1)
-
Step 950
950
#2D2421
oklch(27% 0.015 39.3)
#644F48 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) | #545148 | 0.027 |
| Deuteranopia (no green cones) | #595548 | 0.025 |
| Tritanopia (no blue cones) | #694C4D | 0.016 |
| Achromatopsia (no color) | #545454 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644F48
#644F48
oklch(44.7% 0.031 39.2)
- #425960
#425960
oklch(44.8% 0.03 218.5)
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 #644F48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.051
- Purple Brown #673A3F ΔE 0.057
- Milk Chocolate #7F4E1E ΔE 0.068
- Mud Brown #60460F ΔE 0.068
- Dusty Grape #545775 ΔE 0.072
- Medium Brown #7F5112 ΔE 0.076
- Slate #516572 ΔE 0.078
- Olive Brown #645403 ΔE 0.079
Use #644F48 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.