#665B36
Closest named color: Mud (#735C12). oklch(47.2% 0.056 93.4), rgb(102, 91, 54).
Aa
White text reads best on this color (6.74:1).
About this color
#665B36 is a medium-dark, muted brown. In OKLCH its lightness is 47%, its chroma 0.056 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.038 away. White text reads best on it, at 6.74:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #665B36 |
| RGB | rgb(102, 91, 54) |
| HSL | hsl(46, 31%, 31%) |
| OKLCH | oklch(47.2% 0.056 93.4) |
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 #665B36 | 6.74:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #665B36 | 3.11:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #665B36 text on white | 6.74:1 | AA | Lc 83.2 | Fine for body text |
| #665B36 text on black | 3.11:1 | AA large text | Lc -18.7 | 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
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DCD9CE
oklch(88.5% 0.015 94.2)
-
Step 300
300
#C6C1AD
oklch(81% 0.028 95.4)
-
Step 400
400
#A9A182
oklch(70.8% 0.044 95.3)
-
Step 500
500
#958963
oklch(63.1% 0.055 92.6)
-
Step 600
600
#7F734A
oklch(55.6% 0.06 93.7)
-
Step 700
700 (this color)
#665B36
oklch(47.2% 0.056 93.4)
-
Step 800
800
#574F31
oklch(42.7% 0.047 95)
-
Step 900
900
#48412B
oklch(37.6% 0.036 92.5)
-
Step 950
950
#2A261A
oklch(26.9% 0.022 91.8)
#665B36 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) | #625A33 | 0.009 |
| Deuteranopia (no green cones) | #655D37 | 0.006 |
| Tritanopia (no blue cones) | #6D5652 | 0.050 |
| Achromatopsia (no color) | #5B5B5B | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665B36
#665B36
oklch(47.2% 0.056 93.4)
- #51597B
#51597B
oklch(47.1% 0.056 273.9)
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 #665B36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.038
- Olive Brown #645403 ΔE 0.043
- Greeny Brown #696006 ΔE 0.046
- Dark Moss Green #606C38 ΔE 0.051
- Medium Brown #7F5112 ΔE 0.051
- Milk Chocolate #7F4E1E ΔE 0.052
- Camo Green #526525 ΔE 0.052
- Dark Olive Green #556B2F ΔE 0.057
Use #665B36 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.