#99903F
Closest named color: Dark Mustard (#A88905). oklch(64.4% 0.103 103), rgb(153, 144, 63).
Aa
Black text reads best on this color (6.41:1).
About this color
#99903F is a medium-light, moderately saturated yellow. In OKLCH its lightness is 64%, its chroma 0.103 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mustard (#A88905), ΔE 0.034 away. Black text reads best on it, at 6.41:1.
| Hue family | Yellows |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Dark Mustard (#A88905) |
| Black text | 6.41:1 |
| White text | 3.27:1 |
Values
| HEX | #99903F |
| RGB | rgb(153, 144, 63) |
| HSL | hsl(54, 42%, 42%) |
| OKLCH | oklch(64.4% 0.103 103) |
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 #99903F | 3.27:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #99903F | 6.41:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #99903F text on white | 3.27:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #99903F text on black | 6.41:1 | AA | Lc -41.7 | 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
#EBEAE0
oklch(93.5% 0.013 102)
-
Step 200
200
#DCDAC5
oklch(88.4% 0.028 102.5)
-
Step 300
300
#C6C39D
oklch(81% 0.051 103.7)
-
Step 400
400
#A9A367
oklch(70.6% 0.08 103.3)
-
Step 500
500 (this color)
#99903F
oklch(64.4% 0.103 103)
-
Step 600
600
#807510
oklch(55.6% 0.112 102.5)
-
Step 700
700
#6C6200
oklch(49% 0.103 102.5)
-
Step 800
800
#585007
oklch(42.6% 0.086 102.5)
-
Step 900
900
#484312
oklch(37.7% 0.068 103.5)
-
Step 950
950
#2A270C
oklch(26.9% 0.043 103)
#99903F 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) | #9C8C37 | 0.011 |
| Deuteranopia (no green cones) | #9F9043 | 0.011 |
| Tritanopia (no blue cones) | #A4877E | 0.094 |
| Achromatopsia (no color) | #8E8E8E | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99903F
#99903F
oklch(64.4% 0.103 103)
- #8585CA
#8585CA
oklch(64.5% 0.102 283.2)
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 #99903F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mustard #A88905 ΔE 0.034
- Yellowy Brown #AE8B0C ΔE 0.038
- Camo #7F8F4E ΔE 0.039
- Dark Sand #A88F59 ΔE 0.040
- Dark Tan #AF884A ΔE 0.045
- Pea Soup #929901 ΔE 0.049
- Moss #769958 ΔE 0.051
- Drab Green #749551 ΔE 0.051
Use #99903F 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.