#66611F
Closest named color: Greeny Brown (#696006). oklch(48.4% 0.086 105), rgb(102, 97, 31).
Aa
White text reads best on this color (6.37:1).
About this color
#66611F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 48%, its chroma 0.086 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.013 away. White text reads best on it, at 6.37:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #66611F |
| RGB | rgb(102, 97, 31) |
| HSL | hsl(56, 53%, 26%) |
| OKLCH | oklch(48.4% 0.086 105) |
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 #66611F | 6.37:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #66611F | 3.29:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #66611F text on white | 6.37:1 | AA | Lc 81.6 | Fine for body text |
| #66611F text on black | 3.29:1 | AA large text | Lc -20.3 | 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
#DBDAC9
oklch(88.5% 0.023 104.1)
-
Step 300
300
#C4C3A4
oklch(81% 0.042 105.8)
-
Step 400
400
#A6A373
oklch(70.6% 0.066 104.9)
-
Step 500
500
#918C4D
oklch(63% 0.085 104.6)
-
Step 600
600
#7B762F
oklch(55.5% 0.093 105.3)
-
Step 700
700 (this color)
#66611F
oklch(48.4% 0.086 105)
-
Step 800
800
#55511E
oklch(42.7% 0.071 104.8)
-
Step 900
900
#46431E
oklch(37.7% 0.055 104.6)
-
Step 950
950
#292712
oklch(26.9% 0.035 103.7)
#66611F 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) | #6A5D16 | 0.012 |
| Deuteranopia (no green cones) | #6C6123 | 0.011 |
| Tritanopia (no blue cones) | #6E5A53 | 0.078 |
| Achromatopsia (no color) | #5F5F5F | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66611F
#66611F
oklch(48.4% 0.086 105)
- #5A578D
#5A578D
oklch(48.4% 0.086 285.3)
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 #66611F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.013
- Mud #735C12 ΔE 0.024
- Mud Green #606602 ΔE 0.027
- Camo Green #526525 ΔE 0.031
- Dark Moss Green #606C38 ΔE 0.034
- Dark Olive Green #556B2F ΔE 0.035
- Olive Brown #645403 ΔE 0.038
- Brown Green #706C11 ΔE 0.040
Use #66611F 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.