#999666
Closest named color: Dark Sand (#A88F59). oklch(66.4% 0.066 105), rgb(153, 150, 102).
Aa
Black text reads best on this color (6.90:1).
About this color
#999666 is a medium-light, muted yellow. In OKLCH its lightness is 66%, its chroma 0.066 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Sand (#A88F59), ΔE 0.027 away. Black text reads best on it, at 6.90:1.
| Hue family | Yellows |
| Lightness | medium-light (66%) |
| Chroma | muted (0.066) |
| Temperature | warm |
| Nearest name | Dark Sand (#A88F59) |
| Black text | 6.90:1 |
| White text | 3.03:1 |
Values
| HEX | #999666 |
| RGB | rgb(153, 150, 102) |
| HSL | hsl(56, 20%, 50%) |
| OKLCH | oklch(66.4% 0.066 105) |
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 #999666 | 3.03:1 | AA large text | Lc -62.6 | Content text, not long reading |
| Black text on #999666 | 6.90:1 | AA | Lc 46.9 | Large or bold text, headings |
| #999666 text on white | 3.03:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #999666 text on black | 6.90:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EAEAE3
oklch(93.5% 0.009 106.6)
-
Step 200
200
#DADACD
oklch(88.5% 0.018 106.8)
-
Step 300
300
#C3C2AA
oklch(80.8% 0.033 105.2)
-
Step 400
400
#A5A37E
oklch(70.7% 0.051 105.1)
-
Step 500
500 (this color)
#999666
oklch(66.4% 0.066 105)
-
Step 600
600
#797642
oklch(55.6% 0.072 105.6)
-
Step 700
700
#666334
oklch(49.1% 0.067 105.4)
-
Step 800
800
#53512C
oklch(42.7% 0.055 105.8)
-
Step 900
900
#454327
oklch(37.7% 0.044 104.8)
-
Step 950
950
#282717
oklch(26.9% 0.028 105.1)
#999666 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) | #9E9263 | 0.012 |
| Deuteranopia (no green cones) | #A09568 | 0.011 |
| Tritanopia (no blue cones) | #A0908A | 0.060 |
| Achromatopsia (no color) | #949494 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999666
#999666
oklch(66.4% 0.066 105)
- #8F8EBB
#8F8EBB
oklch(66.4% 0.066 285.5)
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 #999666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sand #A88F59 ΔE 0.027
- Dark Beige #AC9362 ΔE 0.029
- Grey Green #86A17D ΔE 0.039
- Dust #B2996E ΔE 0.042
- Pale Brown #B1916E ΔE 0.042
- Greeny Grey #7EA07A ΔE 0.043
- Dark Tan #AF884A ΔE 0.048
- Green Grey #77926F ΔE 0.050
Use #999666 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.