#666816
Closest named color: Mud Green (#606602). oklch(50% 0.1 111), rgb(102, 104, 22).
Aa
White text reads best on this color (5.90:1).
About this color
#666816 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 50%, its chroma 0.100 and its hue 111°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.015 away. White text reads best on it, at 5.90:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #666816 |
| RGB | rgb(102, 104, 22) |
| HSL | hsl(61, 65%, 25%) |
| OKLCH | oklch(50% 0.1 111) |
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 #666816 | 5.90:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #666816 | 3.55:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #666816 text on white | 5.90:1 | AA | Lc 79.4 | Fine for body text |
| #666816 text on black | 3.55:1 | AA large text | Lc -22.4 | 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
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#D9DBC7
oklch(88.4% 0.027 111.6)
-
Step 300
300
#C1C4A0
oklch(80.9% 0.049 111.4)
-
Step 400
400
#A2A56C
oklch(70.6% 0.077 110.8)
-
Step 500
500
#8C8F43
oklch(63.1% 0.1 111)
-
Step 600
600
#767921
oklch(55.6% 0.108 111.4)
-
Step 700
700 (this color)
#666816
oklch(50% 0.1 111)
-
Step 800
800
#515313
oklch(42.7% 0.084 111.2)
-
Step 900
900
#434518
oklch(37.8% 0.065 111.5)
-
Step 950
950
#27280F
oklch(26.9% 0.041 110.9)
#666816 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) | #716304 | 0.020 |
| Deuteranopia (no green cones) | #71651D | 0.021 |
| Tritanopia (no blue cones) | #6E6159 | 0.091 |
| Achromatopsia (no color) | #646464 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666816
#666816
oklch(50% 0.1 111)
- #645898
#645898
oklch(50.1% 0.1 290.9)
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 #666816, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.015
- Browny Green #6F6C0A ΔE 0.020
- Brown Green #706C11 ΔE 0.021
- Greeny Brown #696006 ΔE 0.022
- Dark Olive Green #556B2F ΔE 0.028
- Dark Moss Green #606C38 ΔE 0.029
- Camo Green #526525 ΔE 0.033
- Muddy Green #657432 ΔE 0.036
Use #666816 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.