#999663
Closest named color: Dark Sand (#A88F59). oklch(66.3% 0.07 105.3), rgb(153, 150, 99).
Aa
Black text reads best on this color (6.89:1).
About this color
#999663 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 66%, its chroma 0.070 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 6.89:1.
| Hue family | Yellows |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.070) |
| Temperature | warm |
| Nearest name | Dark Sand (#A88F59) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #999663 |
| RGB | rgb(153, 150, 99) |
| HSL | hsl(57, 21%, 49%) |
| OKLCH | oklch(66.3% 0.07 105.3) |
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 #999663 | 3.04:1 | AA large text | Lc -62.6 | Content text, not long reading |
| Black text on #999663 | 6.89:1 | AA | Lc 46.8 | Large or bold text, headings |
| #999663 text on white | 3.04:1 | AA large text | Lc 57.3 | Large or bold text, headings |
| #999663 text on black | 6.89:1 | AA | Lc -44.5 | 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
#DBDACC
oklch(88.5% 0.019 103.5)
-
Step 300
300
#C3C2A9
oklch(80.8% 0.034 105.3)
-
Step 400
400
#A5A37B
oklch(70.7% 0.055 105.3)
-
Step 500
500 (this color)
#999663
oklch(66.3% 0.07 105.3)
-
Step 600
600
#7A763F
oklch(55.6% 0.076 104.9)
-
Step 700
700
#666331
oklch(49.1% 0.07 105.6)
-
Step 800
800
#535129
oklch(42.7% 0.059 106.1)
-
Step 900
900
#454326
oklch(37.7% 0.045 104.9)
-
Step 950
950
#282716
oklch(26.9% 0.029 105.3)
#999663 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) | #9E925F | 0.012 |
| Deuteranopia (no green cones) | #A09565 | 0.011 |
| Tritanopia (no blue cones) | #A19089 | 0.063 |
| Achromatopsia (no color) | #949494 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999663
#999663
oklch(66.3% 0.07 105.3)
- #8E8DBD
#8E8DBD
oklch(66.2% 0.071 285.2)
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 #999663, 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 0.041
- Dust #B2996E ΔE 0.043
- Greeny Grey #7EA07A ΔE 0.044
- Pale Brown #B1916E ΔE 0.044
- Dark Tan #AF884A ΔE 0.047
- Camo #7F8F4E ΔE 0.051
Use #999663 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.