#664324
Closest named color: Mud Brown (#60460F). oklch(41.6% 0.066 60.9), rgb(102, 67, 36).
Aa
White text reads best on this color (8.77:1).
About this color
#664324 is a dark, muted brown. In OKLCH its lightness is 42%, its chroma 0.066 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.028 away. White text reads best on it, at 8.77:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | muted (0.066) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #664324 |
| RGB | rgb(102, 67, 36) |
| HSL | hsl(28, 48%, 27%) |
| OKLCH | oklch(41.6% 0.066 60.9) |
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 #664324 | 8.77:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #664324 | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #664324 text on white | 8.77:1 | AAA | Lc 89.9 | Fine for body text |
| #664324 text on black | 2.39:1 | Fails | Lc -12.4 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E2
oklch(93.6% 0.012 59.6)
-
Step 200
200
#E4D6CB
oklch(88.4% 0.022 60.7)
-
Step 300
300
#D4BBA8
oklch(80.8% 0.039 59.4)
-
Step 400
400
#BE9879
oklch(70.7% 0.063 60.7)
-
Step 500
500
#AD7E57
oklch(63.1% 0.079 60.3)
-
Step 600
600
#98673C
oklch(55.6% 0.086 60.9)
-
Step 700
700
#81552E
oklch(49% 0.08 60.8)
-
Step 800
800 (this color)
#664324
oklch(41.6% 0.066 60.9)
-
Step 900
900
#563B24
oklch(37.7% 0.052 60.7)
-
Step 950
950
#322316
oklch(27.1% 0.032 61.8)
#664324 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) | #4E4621 | 0.046 |
| Deuteranopia (no green cones) | #564E24 | 0.042 |
| Tritanopia (no blue cones) | #6F3B3C | 0.050 |
| Achromatopsia (no color) | #4B4B4B | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664324
#664324
oklch(41.6% 0.066 60.9)
- #27506D
#27506D
oklch(41.5% 0.067 241.7)
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 #664324, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.028
- Purple Brown #673A3F ΔE 0.054
- Green Brown #544E03 ΔE 0.060
- Milk Chocolate #7F4E1E ΔE 0.060
- Olive Brown #645403 ΔE 0.062
- Chestnut #742802 ΔE 0.065
- Medium Brown #7F5112 ΔE 0.068
- Brownish Purple #76424E ΔE 0.071
Use #664324 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.