#666613
Closest named color: Mud Green (#606602). oklch(49.5% 0.1 109.6), rgb(102, 102, 19).
Aa
White text reads best on this color (6.04:1).
About this color
#666613 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 49%, its chroma 0.100 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.013 away. White text reads best on it, at 6.04:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.100) |
| Temperature | warm |
| Nearest name | Mud Green (#606602) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #666613 |
| RGB | rgb(102, 102, 19) |
| HSL | hsl(60, 69%, 24%) |
| OKLCH | oklch(49.5% 0.1 109.6) |
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 #666613 | 6.04:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #666613 | 3.47:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #666613 text on white | 6.04:1 | AA | Lc 80.1 | Fine for body text |
| #666613 text on black | 3.47:1 | AA large text | Lc -21.7 | 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
#DADBC7
oklch(88.5% 0.027 109.3)
-
Step 300
300
#C2C4A0
oklch(80.9% 0.049 110.1)
-
Step 400
400
#A3A56C
oklch(70.6% 0.077 109.9)
-
Step 500
500
#8E8E43
oklch(63% 0.098 108.9)
-
Step 600
600
#787820
oklch(55.6% 0.107 109.4)
-
Step 700
700 (this color)
#666613
oklch(49.5% 0.1 109.6)
-
Step 800
800
#525213
oklch(42.6% 0.082 109.4)
-
Step 900
900
#444418
oklch(37.6% 0.064 109.1)
-
Step 950
950
#28280F
oklch(27% 0.041 108.8)
#666613 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) | #6F6100 | 0.018 |
| Deuteranopia (no green cones) | #70641A | 0.019 |
| Tritanopia (no blue cones) | #6E5F57 | 0.090 |
| Achromatopsia (no color) | #636363 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666613
#666613
oklch(49.5% 0.1 109.6)
- #615796
#615796
oklch(49.5% 0.099 289.6)
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 #666613, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.013
- Greeny Brown #696006 ΔE 0.017
- Browny Green #6F6C0A ΔE 0.024
- Brown Green #706C11 ΔE 0.025
- Dark Olive Green #556B2F ΔE 0.029
- Camo Green #526525 ΔE 0.031
- Dark Moss Green #606C38 ΔE 0.031
- Mud #735C12 ΔE 0.035
Use #666613 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.