#666A22
Closest named color: Brown Green (#706C11). oklch(50.6% 0.094 112.4), rgb(102, 106, 34).
Aa
White text reads best on this color (5.75:1).
About this color
#666A22 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 51%, its chroma 0.094 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brown Green (#706C11), ΔE 0.020 away. White text reads best on it, at 5.75:1.
| Hue family | Yellows |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Brown Green (#706C11) |
| Black text | 3.64:1 |
| White text | 5.75:1 |
Values
| HEX | #666A22 |
| RGB | rgb(102, 106, 34) |
| HSL | hsl(63, 51%, 27%) |
| OKLCH | oklch(50.6% 0.094 112.4) |
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 #666A22 | 5.75:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #666A22 | 3.64:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #666A22 text on white | 5.75:1 | AA | Lc 78.7 | Fine for body text |
| #666A22 text on black | 3.64:1 | AA large text | Lc -23.1 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#D9DBC8
oklch(88.5% 0.026 111.8)
-
Step 300
300
#C1C4A3
oklch(80.9% 0.045 111.6)
-
Step 400
400
#A1A670
oklch(70.8% 0.074 112.6)
-
Step 500
500
#8A8F4A
oklch(63% 0.093 112.4)
-
Step 600
600
#75792B
oklch(55.6% 0.101 112)
-
Step 700
700 (this color)
#666A22
oklch(50.6% 0.094 112.4)
-
Step 800
800
#50531B
oklch(42.7% 0.077 112.1)
-
Step 900
900
#42451C
oklch(37.7% 0.061 112.8)
-
Step 950
950
#272811
oklch(26.9% 0.038 110.9)
#666A22 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) | #726518 | 0.022 |
| Deuteranopia (no green cones) | #726727 | 0.022 |
| Tritanopia (no blue cones) | #6D635B | 0.084 |
| Achromatopsia (no color) | #666666 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666A22
#666A22
oklch(50.6% 0.094 112.4)
- #675A96
#675A96
oklch(50.6% 0.094 292.7)
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 #666A22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown Green #706C11 ΔE 0.020
- Browny Green #6F6C0A ΔE 0.020
- Dark Moss Green #606C38 ΔE 0.021
- Mud Green #606602 ΔE 0.023
- Dark Olive Green #556B2F ΔE 0.025
- Greeny Brown #696006 ΔE 0.029
- Muddy Green #657432 ΔE 0.029
- Camo Green #526525 ΔE 0.035
Use #666A22 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.