#64394E
Closest named color: Purple Brown (#673A3F). oklch(40.4% 0.067 349.9), rgb(100, 57, 78).
Aa
White text reads best on this color (9.38:1).
About this color
#64394E is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.067 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.027 away. White text reads best on it, at 9.38:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #64394E |
| RGB | rgb(100, 57, 78) |
| HSL | hsl(331, 27%, 31%) |
| OKLCH | oklch(40.4% 0.067 349.9) |
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 #64394E | 9.38:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #64394E | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #64394E text on white | 9.38:1 | AAA | Lc 91.5 | Preferred for body text |
| #64394E text on black | 2.23:1 | Fails | Lc -10.9 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E5D4DB
oklch(88.6% 0.021 350.6)
-
Step 300
300
#D5B7C4
oklch(80.9% 0.038 350)
-
Step 400
400
#C091A6
oklch(70.8% 0.063 350.3)
-
Step 500
500
#AF7590
oklch(63.1% 0.081 350.2)
-
Step 600
600
#9A5D7B
oklch(55.6% 0.089 349.5)
-
Step 700
700
#834D67
oklch(49.1% 0.08 350.2)
-
Step 800
800 (this color)
#64394E
oklch(40.4% 0.067 349.9)
-
Step 900
900
#573646
oklch(37.8% 0.053 349.4)
-
Step 950
950
#332029
oklch(27.1% 0.033 349.6)
#64394E 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) | #3D424F | 0.072 |
| Deuteranopia (no green cones) | #48494D | 0.066 |
| Tritanopia (no blue cones) | #6A3840 | 0.025 |
| Achromatopsia (no color) | #464646 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64394E
#64394E
oklch(40.4% 0.067 349.9)
- #195443
#195443
oklch(40.3% 0.067 170.3)
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 #64394E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.027
- Brownish Purple #76424E ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.080
- Velvet #750851 ΔE 0.089
- Grape Purple #5D1451 ΔE 0.089
- Dark Mauve #874C62 ΔE 0.091
- Red Purple #820747 ΔE 0.091
- Merlot #730039 ΔE 0.092
Use #64394E 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.