#665B16
Closest named color: Greeny Brown (#696006). oklch(46.8% 0.087 99.9), rgb(102, 91, 22).
Aa
White text reads best on this color (6.83:1).
About this color
#665B16 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 47%, its chroma 0.087 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.019 away. White text reads best on it, at 6.83:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.07:1 |
| White text | 6.83:1 |
Values
| HEX | #665B16 |
| RGB | rgb(102, 91, 22) |
| HSL | hsl(52, 65%, 24%) |
| OKLCH | oklch(46.8% 0.087 99.9) |
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 #665B16 | 6.83:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #665B16 | 3.07:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #665B16 text on white | 6.83:1 | AA | Lc 83.5 | Fine for body text |
| #665B16 text on black | 3.07:1 | AA large text | Lc -18.4 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE1
oklch(93.5% 0.012 101.5)
-
Step 200
200
#DCDAC8
oklch(88.5% 0.024 101.7)
-
Step 300
300
#C7C2A3
oklch(81% 0.042 99.7)
-
Step 400
400
#AAA271
oklch(70.7% 0.067 100)
-
Step 500
500
#968B4A
oklch(63.2% 0.087 99.9)
-
Step 600
600
#80742C
oklch(55.5% 0.093 99.8)
-
Step 700
700 (this color)
#665B16
oklch(46.8% 0.087 99.9)
-
Step 800
800
#58501B
oklch(42.8% 0.073 100.7)
-
Step 900
900
#49421C
oklch(37.7% 0.057 99)
-
Step 950
950
#2A2712
oklch(27% 0.035 101.2)
#665B16 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) | #64580A | 0.011 |
| Deuteranopia (no green cones) | #675C1B | 0.005 |
| Tritanopia (no blue cones) | #6E544E | 0.080 |
| Achromatopsia (no color) | #5B5B5B | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665B16
#665B16
oklch(46.8% 0.087 99.9)
- #51548A
#51548A
oklch(46.8% 0.087 280)
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 #665B16, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.019
- Olive Brown #645403 ΔE 0.021
- Mud #735C12 ΔE 0.023
- Mud Green #606602 ΔE 0.038
- Camo Green #526525 ΔE 0.038
- Army Green #4B5D16 ΔE 0.043
- Camouflage Green #4B6113 ΔE 0.045
- Dark Olive Green #556B2F ΔE 0.049
Use #665B16 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.