#999643
Closest named color: Dark Mustard (#A88905). oklch(65.8% 0.106 107.1), rgb(153, 150, 67).
Aa
Black text reads best on this color (6.79:1).
About this color
#999643 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 66%, its chroma 0.106 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.042 away. Black text reads best on it, at 6.79:1.
| Hue family | Yellows |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.79:1 |
| White text | 3.08:1 |
Values
| HEX | #999643 |
| RGB | rgb(153, 150, 67) |
| HSL | hsl(58, 39%, 43%) |
| OKLCH | oklch(65.8% 0.106 107.1) |
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 #999643 | 3.08:1 | AA large text | Lc -63.2 | Content text, not long reading |
| Black text on #999643 | 6.79:1 | AA | Lc 46.3 | Large or bold text, headings |
| #999643 text on white | 3.08:1 | AA large text | Lc 57.8 | Large or bold text, headings |
| #999643 text on black | 6.79:1 | AA | Lc -44.0 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEBDF
oklch(93.7% 0.016 106.7)
-
Step 200
200
#DBDBC5
oklch(88.6% 0.029 107)
-
Step 300
300
#C4C39D
oklch(80.8% 0.051 106.2)
-
Step 400
400
#A6A467
oklch(70.6% 0.082 106.7)
-
Step 500
500 (this color)
#999643
oklch(65.8% 0.106 107.1)
-
Step 600
600
#7B770F
oklch(55.5% 0.115 107.2)
-
Step 700
700
#686400
oklch(49.1% 0.105 107)
-
Step 800
800
#555206
oklch(42.8% 0.089 107.1)
-
Step 900
900
#464412
oklch(37.8% 0.069 107)
-
Step 950
950
#29280C
oklch(27.1% 0.044 107.1)
#999643 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) | #A1913B | 0.016 |
| Deuteranopia (no green cones) | #A39447 | 0.017 |
| Tritanopia (no blue cones) | #A38D84 | 0.096 |
| Achromatopsia (no color) | #939393 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999643
#999643
oklch(65.8% 0.106 107.1)
- #8D87CF
#8D87CF
oklch(65.7% 0.106 286.9)
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 #999643, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.042
- Pea Soup #929901 ΔE 0.042
- Yellowy Brown #AE8B0C ΔE 0.043
- Dark Sand #A88F59 ΔE 0.044
- Camo #7F8F4E ΔE 0.045
- Brown Yellow #B29705 ΔE 0.046
- Dark Gold #B59410 ΔE 0.047
- Moss #769958 ΔE 0.048
Use #999643 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.