#666106
Closest named color: Greeny Brown (#696006). oklch(48.2% 0.1 106), rgb(102, 97, 6).
Aa
White text reads best on this color (6.40:1).
About this color
#666106 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 48%, its chroma 0.100 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.006 away. White text reads best on it, at 6.40:1.
| Hue family | Yellows |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.100) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #666106 |
| RGB | rgb(102, 97, 6) |
| HSL | hsl(57, 89%, 21%) |
| OKLCH | oklch(48.2% 0.1 106) |
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 #666106 | 6.40:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #666106 | 3.27:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #666106 text on white | 6.40:1 | AA | Lc 81.7 | Fine for body text |
| #666106 text on black | 3.27:1 | AA large text | Lc -20.2 | 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
#EBEBE0
oklch(93.7% 0.015 106.7)
-
Step 200
200
#DBDBC6
oklch(88.6% 0.028 107)
-
Step 300
300
#C4C39F
oklch(80.9% 0.049 106.1)
-
Step 400
400
#A7A46A
oklch(70.7% 0.078 105.7)
-
Step 500
500
#918D40
oklch(63% 0.099 106.2)
-
Step 600
600
#7C771B
oklch(55.7% 0.109 106.2)
-
Step 700
700 (this color)
#666106
oklch(48.2% 0.1 106)
-
Step 800
800
#55510F
oklch(42.6% 0.083 105.8)
-
Step 900
900
#464416
oklch(37.8% 0.065 106.8)
-
Step 950
950
#29280E
oklch(27.1% 0.042 106.9)
#666106 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) | #6B5D00 | 0.013 |
| Deuteranopia (no green cones) | #6C6010 | 0.012 |
| Tritanopia (no blue cones) | #6E5A52 | 0.091 |
| Achromatopsia (no color) | #5F5F5F | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666106
#666106
oklch(48.2% 0.1 106)
- #5A5494
#5A5494
oklch(48.1% 0.101 286.2)
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 #666106, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.006
- Mud Green #606602 ΔE 0.018
- Mud #735C12 ΔE 0.028
- Camo Green #526525 ΔE 0.031
- Browny Green #6F6C0A ΔE 0.036
- Brown Green #706C11 ΔE 0.037
- Dark Olive Green #556B2F ΔE 0.038
- Olive Brown #645403 ΔE 0.038
Use #666106 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.