#64443B
Closest named color: Purple Brown (#673A3F). oklch(42% 0.047 36.4), rgb(100, 68, 59).
Aa
White text reads best on this color (8.63:1).
About this color
#64443B is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.047 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.031 away. White text reads best on it, at 8.63:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #64443B |
| RGB | rgb(100, 68, 59) |
| HSL | hsl(13, 26%, 31%) |
| OKLCH | oklch(42% 0.047 36.4) |
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 #64443B | 8.63:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #64443B | 2.43:1 | Fails | Lc 14.4 | Not readable |
| #64443B text on white | 8.63:1 | AAA | Lc 89.6 | Fine for body text |
| #64443B text on black | 2.43:1 | Fails | Lc -12.7 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E3D6D2
oklch(88.5% 0.015 37.9)
-
Step 300
300
#D2BBB4
oklch(81% 0.028 37.6)
-
Step 400
400
#BA988E
oklch(70.8% 0.043 37)
-
Step 500
500
#A87E72
oklch(63.1% 0.056 36.5)
-
Step 600
600
#93675A
oklch(55.6% 0.061 37.1)
-
Step 700
700
#7D554A
oklch(49% 0.057 36)
-
Step 800
800 (this color)
#64443B
oklch(42% 0.047 36.4)
-
Step 900
900
#533B34
oklch(37.7% 0.036 36.9)
-
Step 950
950
#31231F
oklch(27.2% 0.023 36.5)
#64443B 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) | #4B483A | 0.046 |
| Deuteranopia (no green cones) | #534E3B | 0.041 |
| Tritanopia (no blue cones) | #6B3F42 | 0.024 |
| Achromatopsia (no color) | #4C4C4C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64443B
#64443B
oklch(42% 0.047 36.4)
- #2D545E
#2D545E
oklch(42.1% 0.047 216.2)
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 #64443B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.031
- Brownish Purple #76424E ΔE 0.048
- Mud Brown #60460F ΔE 0.056
- Milk Chocolate #7F4E1E ΔE 0.073
- Charcoal Grey #3C4142 ΔE 0.073
- Chestnut #742802 ΔE 0.077
- Green Brown #544E03 ΔE 0.082
- Medium Brown #7F5112 ΔE 0.083
Use #64443B 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.