#665B43
Closest named color: Mud (#735C12). oklch(47.5% 0.039 86.2), rgb(102, 91, 67).
Aa
White text reads best on this color (6.68:1).
About this color
#665B43 is a medium-dark, muted brown. In OKLCH its lightness is 48%, its chroma 0.039 and its hue 86°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.054 away. White text reads best on it, at 6.68:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.14:1 |
| White text | 6.68:1 |
Values
| HEX | #665B43 |
| RGB | rgb(102, 91, 67) |
| HSL | hsl(41, 21%, 33%) |
| OKLCH | oklch(47.5% 0.039 86.2) |
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 #665B43 | 6.68:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #665B43 | 3.14:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #665B43 text on white | 6.68:1 | AA | Lc 83.0 | Fine for body text |
| #665B43 text on black | 3.14:1 | AA large text | Lc -18.9 | 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 700.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE6
oklch(93.7% 0.005 95.1)
-
Step 200
200
#DCD9D1
oklch(88.5% 0.011 89.7)
-
Step 300
300
#C6C0B3
oklch(80.9% 0.019 86.2)
-
Step 400
400
#A9A08C
oklch(70.8% 0.03 86.7)
-
Step 500
500
#94886F
oklch(63.1% 0.039 85.4)
-
Step 600
600
#7E7257
oklch(55.6% 0.042 86.8)
-
Step 700
700 (this color)
#665B43
oklch(47.5% 0.039 86.2)
-
Step 800
800
#574E3B
oklch(42.7% 0.032 85.6)
-
Step 900
900
#474132
oklch(37.7% 0.026 88.8)
-
Step 950
950
#2A261E
oklch(27% 0.015 84.5)
#665B43 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) | #615A41 | 0.010 |
| Deuteranopia (no green cones) | #635D44 | 0.007 |
| Tritanopia (no blue cones) | #6C5755 | 0.036 |
| Achromatopsia (no color) | #5C5C5C | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665B43
#665B43
oklch(47.5% 0.039 86.2)
- #525C73
#525C73
oklch(47.5% 0.039 266.5)
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 #665B43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.054
- Milk Chocolate #7F4E1E ΔE 0.058
- Dark Moss Green #606C38 ΔE 0.059
- Olive Brown #645403 ΔE 0.059
- Cocoa #875F42 ΔE 0.060
- Dark Taupe #7F684E ΔE 0.060
- Medium Brown #7F5112 ΔE 0.060
- Dim Gray #696969 ΔE 0.060
Use #665B43 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.