#644E4C
Closest named color: Brownish Purple (#76424E). oklch(44.6% 0.03 24.4), rgb(100, 78, 76).
Aa
White text reads best on this color (7.67:1).
About this color
#644E4C is a dark, muted red. In OKLCH its lightness is 45%, its chroma 0.030 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.046 away. White text reads best on it, at 7.67:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | muted (0.030) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #644E4C |
| RGB | rgb(100, 78, 76) |
| HSL | hsl(5, 14%, 35%) |
| OKLCH | oklch(44.6% 0.03 24.4) |
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 #644E4C | 7.67:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #644E4C | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #644E4C text on white | 7.67:1 | AAA | Lc 86.7 | Fine for body text |
| #644E4C text on black | 2.73:1 | Fails | Lc -15.4 | 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
#EDE9E8
oklch(93.7% 0.005 34.3)
-
Step 200
200
#DFD7D6
oklch(88.5% 0.009 26)
-
Step 300
300
#CCBCBB
oklch(80.8% 0.018 21.9)
-
Step 400
400
#B29A98
oklch(70.7% 0.029 23.5)
-
Step 500
500
#9E817F
oklch(63% 0.036 22.8)
-
Step 600
600
#896B68
oklch(55.6% 0.039 25)
-
Step 700
700
#745957
oklch(49.1% 0.036 23.3)
-
Step 800
800 (this color)
#644E4C
oklch(44.6% 0.03 24.4)
-
Step 900
900
#4D3D3B
oklch(37.7% 0.023 26.5)
-
Step 950
950
#2D2423
oklch(27% 0.014 25.5)
#644E4C 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) | #52514C | 0.031 |
| Deuteranopia (no green cones) | #57554C | 0.029 |
| Tritanopia (no blue cones) | #694C4E | 0.012 |
| Achromatopsia (no color) | #535353 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E4C
#644E4C
oklch(44.6% 0.03 24.4)
- #41595C
#41595C
oklch(44.6% 0.029 205.7)
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 #644E4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.046
- Purple Brown #673A3F ΔE 0.054
- Dusty Grape #545775 ΔE 0.066
- Milk Chocolate #7F4E1E ΔE 0.073
- Mud Brown #60460F ΔE 0.074
- Dark Mauve #874C62 ΔE 0.075
- Slate #516572 ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.080
Use #644E4C 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.