#666E27
Closest named color: Muddy Green (#657432). oklch(51.6% 0.095 115.2), rgb(102, 110, 39).
Aa
White text reads best on this color (5.49:1).
About this color
#666E27 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 52%, its chroma 0.095 and its hue 115°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.018 away. White text reads best on it, at 5.49:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #666E27 |
| RGB | rgb(102, 110, 39) |
| HSL | hsl(67, 48%, 29%) |
| OKLCH | oklch(51.6% 0.095 115.2) |
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 #666E27 | 5.49:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #666E27 | 3.82:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #666E27 text on white | 5.49:1 | AA | Lc 77.3 | Fine for body text |
| #666E27 text on black | 3.82:1 | AA large text | Lc -24.4 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D8DBC9
oklch(88.4% 0.024 114.6)
-
Step 300
300
#BFC5A3
oklch(81% 0.047 115.6)
-
Step 400
400
#9FA671
oklch(70.6% 0.073 114.4)
-
Step 500
500
#87904B
oklch(63% 0.093 115.2)
-
Step 600
600
#717A2C
oklch(55.5% 0.102 115.4)
-
Step 700
700 (this color)
#666E27
oklch(51.6% 0.095 115.2)
-
Step 800
800
#4E541C
oklch(42.8% 0.078 114.9)
-
Step 900
900
#40451D
oklch(37.6% 0.06 115.3)
-
Step 950
950
#262912
oklch(27.1% 0.039 115.1)
#666E27 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) | #76681E | 0.028 |
| Deuteranopia (no green cones) | #756A2C | 0.028 |
| Tritanopia (no blue cones) | #6C685F | 0.082 |
| Achromatopsia (no color) | #696969 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666E27
#666E27
oklch(51.6% 0.095 115.2)
- #6C5C98
#6C5C98
oklch(51.6% 0.094 295.2)
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 #666E27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.018
- Brown Green #706C11 ΔE 0.018
- Browny Green #6F6C0A ΔE 0.019
- Dark Moss Green #606C38 ΔE 0.021
- Dark Olive Green #556B2F ΔE 0.028
- Mud Green #606602 ΔE 0.031
- Greeny Brown #696006 ΔE 0.040
- Military Green #667C3E ΔE 0.041
Use #666E27 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.