#666519
Closest named color: Greeny Brown (#696006). oklch(49.3% 0.095 108.7), rgb(102, 101, 25).
Aa
White text reads best on this color (6.10:1).
About this color
#666519 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 49%, its chroma 0.095 and its hue 109°. 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 6.10:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.095) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #666519 |
| RGB | rgb(102, 101, 25) |
| HSL | hsl(59, 61%, 25%) |
| OKLCH | oklch(49.3% 0.095 108.7) |
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 #666519 | 6.10:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #666519 | 3.44:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #666519 text on white | 6.10:1 | AA | Lc 80.4 | Fine for body text |
| #666519 text on black | 3.44:1 | AA large text | Lc -21.5 | 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
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#DADBC8
oklch(88.5% 0.026 109.4)
-
Step 300
300
#C3C3A2
oklch(80.9% 0.045 107.4)
-
Step 400
400
#A4A56E
oklch(70.8% 0.075 109)
-
Step 500
500
#8E8E47
oklch(63.1% 0.094 108.8)
-
Step 600
600
#797826
oklch(55.7% 0.103 108.6)
-
Step 700
700 (this color)
#666519
oklch(49.3% 0.095 108.7)
-
Step 800
800
#535217
oklch(42.7% 0.079 108.4)
-
Step 900
900
#44441A
oklch(37.7% 0.061 109)
-
Step 950
950
#282810
oklch(27% 0.039 108.8)
#666519 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) | #6E610B | 0.016 |
| Deuteranopia (no green cones) | #6F631F | 0.018 |
| Tritanopia (no blue cones) | #6E5E56 | 0.086 |
| Achromatopsia (no color) | #626262 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666519
#666519
oklch(49.3% 0.095 108.7)
- #605794
#605794
oklch(49.3% 0.096 289.1)
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 #666519, 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 Green #606602 ΔE 0.017
- Browny Green #6F6C0A ΔE 0.028
- Brown Green #706C11 ΔE 0.028
- Dark Olive Green #556B2F ΔE 0.029
- Dark Moss Green #606C38 ΔE 0.030
- Camo Green #526525 ΔE 0.030
- Mud #735C12 ΔE 0.031
Use #666519 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.