#644E4B
Closest named color: Brownish Purple (#76424E). oklch(44.6% 0.03 27.3), rgb(100, 78, 75).
Aa
White text reads best on this color (7.68:1).
About this color
#644E4B is a dark, muted red. In OKLCH its lightness is 45%, its chroma 0.030 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.047 away. White text reads best on it, at 7.68:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | muted (0.030) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #644E4B |
| RGB | rgb(100, 78, 75) |
| HSL | hsl(7, 14%, 34%) |
| OKLCH | oklch(44.6% 0.03 27.3) |
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 #644E4B | 7.68:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #644E4B | 2.73:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #644E4B text on white | 7.68:1 | AAA | Lc 86.7 | Fine for body text |
| #644E4B 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E8
oklch(93.7% 0.005 34.3)
-
Step 200
200
#DFD7D5
oklch(88.5% 0.009 34.3)
-
Step 300
300
#CCBDBA
oklch(81% 0.018 31.1)
-
Step 400
400
#B29A97
oklch(70.7% 0.029 26.3)
-
Step 500
500
#9E827E
oklch(63.2% 0.035 27.6)
-
Step 600
600
#896B67
oklch(55.6% 0.039 27.1)
-
Step 700
700
#745955
oklch(49% 0.036 28.1)
-
Step 800
800 (this color)
#644E4B
oklch(44.6% 0.03 27.3)
-
Step 900
900
#4D3D3B
oklch(37.7% 0.023 26.5)
-
Step 950
950
#2D2422
oklch(27% 0.014 32.6)
#644E4B 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) | #52514B | 0.031 |
| Deuteranopia (no green cones) | #57554B | 0.029 |
| Tritanopia (no blue cones) | #694B4D | 0.013 |
| Achromatopsia (no color) | #535353 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E4B
#644E4B
oklch(44.6% 0.03 27.3)
- #40595D
#40595D
oklch(44.5% 0.031 208.4)
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 #644E4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.047
- Purple Brown #673A3F ΔE 0.054
- Dusty Grape #545775 ΔE 0.068
- Milk Chocolate #7F4E1E ΔE 0.072
- Mud Brown #60460F ΔE 0.072
- Dark Mauve #874C62 ΔE 0.076
- Slate #516572 ΔE 0.078
- Dark Slate Gray #2F4F4F ΔE 0.080
Use #644E4B 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.