#666221
Closest named color: Greeny Brown (#696006). oklch(48.6% 0.086 105.8), rgb(102, 98, 33).
Aa
White text reads best on this color (6.29:1).
About this color
#666221 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 49%, its chroma 0.086 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.015 away. White text reads best on it, at 6.29:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #666221 |
| RGB | rgb(102, 98, 33) |
| HSL | hsl(57, 51%, 26%) |
| OKLCH | oklch(48.6% 0.086 105.8) |
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 #666221 | 6.29:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #666221 | 3.33:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #666221 text on white | 6.29:1 | AA | Lc 81.3 | Fine for body text |
| #666221 text on black | 3.33:1 | AA large text | Lc -20.6 | 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
#A6A473
oklch(70.8% 0.067 106)
-
Step 500
500
#908D4E
oklch(63.1% 0.085 106.2)
-
Step 600
600
#7B7630
oklch(55.5% 0.092 105.2)
-
Step 700
700 (this color)
#666221
oklch(48.6% 0.086 105.8)
-
Step 800
800
#54511E
oklch(42.6% 0.071 105.9)
-
Step 900
900
#45431F
oklch(37.6% 0.054 105.9)
-
Step 950
950
#292813
oklch(27.2% 0.035 106.1)
#666221 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) | #6B5E19 | 0.013 |
| Deuteranopia (no green cones) | #6C6125 | 0.012 |
| Tritanopia (no blue cones) | #6E5B54 | 0.078 |
| Achromatopsia (no color) | #606060 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666221
#666221
oklch(48.6% 0.086 105.8)
- #5B588E
#5B588E
oklch(48.7% 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 #666221, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.015
- Mud #735C12 ΔE 0.025
- Mud Green #606602 ΔE 0.027
- Camo Green #526525 ΔE 0.030
- Dark Moss Green #606C38 ΔE 0.031
- Dark Olive Green #556B2F ΔE 0.033
- Brown Green #706C11 ΔE 0.038
- Browny Green #6F6C0A ΔE 0.039
Use #666221 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.