#644841
Closest named color: Purple Brown (#673A3F). oklch(43% 0.04 34.5), rgb(100, 72, 65).
Aa
White text reads best on this color (8.25:1).
About this color
#644841 is a dark, muted red. In OKLCH its lightness is 43%, its chroma 0.040 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 8.25:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #644841 |
| RGB | rgb(100, 72, 65) |
| HSL | hsl(12, 21%, 32%) |
| OKLCH | oklch(43% 0.04 34.5) |
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 #644841 | 8.25:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #644841 | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #644841 text on white | 8.25:1 | AAA | Lc 88.5 | Fine for body text |
| #644841 text on black | 2.54:1 | Fails | Lc -13.7 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE8E7
oklch(93.5% 0.007 28.8)
-
Step 200
200
#E2D6D3
oklch(88.5% 0.014 34.3)
-
Step 300
300
#CFBCB7
oklch(81% 0.023 35.1)
-
Step 400
400
#B79991
oklch(70.8% 0.038 35.4)
-
Step 500
500
#A47F76
oklch(63% 0.048 34)
-
Step 600
600
#8F695F
oklch(55.7% 0.052 35.3)
-
Step 700
700
#7A574E
oklch(49.1% 0.049 34.9)
-
Step 800
800 (this color)
#644841
oklch(43% 0.04 34.5)
-
Step 900
900
#513C36
oklch(37.7% 0.032 36.5)
-
Step 950
950
#2F2320
oklch(26.9% 0.019 34.4)
#644841 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) | #4E4B40 | 0.039 |
| Deuteranopia (no green cones) | #555141 | 0.036 |
| Tritanopia (no blue cones) | #6B4446 | 0.020 |
| Achromatopsia (no color) | #4F4F4F | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644841
#644841
oklch(43% 0.04 34.5)
- #35565E
#35565E
oklch(43.1% 0.041 214.8)
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 #644841, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Brownish Purple #76424E ΔE 0.045
- Mud Brown #60460F ΔE 0.060
- Milk Chocolate #7F4E1E ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.076
- Medium Brown #7F5112 ΔE 0.081
- Dark Slate Gray #2F4F4F ΔE 0.082
- Olive Brown #645403 ΔE 0.082
Use #644841 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.