#728B17
Closest named color: Olive Drab (#6B8E23). oklch(59.6% 0.137 121.9), rgb(114, 139, 23).
Aa
Black text reads best on this color (5.42:1).
About this color
#728B17 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 60%, its chroma 0.137 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Drab (#6B8E23), ΔE 0.011 away. Black text reads best on it, at 5.42:1.
| Hue family | Yellows |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Olive Drab (#6B8E23) |
| Black text | 5.42:1 |
| White text | 3.87:1 |
Values
| HEX | #728B17 |
| RGB | rgb(114, 139, 23) |
| HSL | hsl(73, 72%, 32%) |
| OKLCH | oklch(59.6% 0.137 121.9) |
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 #728B17 | 3.87:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #728B17 | 5.42:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #728B17 text on white | 3.87:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #728B17 text on black | 5.42:1 | AA | Lc -35.6 | 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
#F4F6F0
oklch(97% 0.008 121.6)
-
Step 100
100
#E7ECDE
oklch(93.5% 0.019 122.8)
-
Step 200
200
#D5DDC3
oklch(88.4% 0.036 121.1)
-
Step 300
300
#B9C898
oklch(80.9% 0.067 122)
-
Step 400
400
#95AB5D
oklch(70.6% 0.107 122.1)
-
Step 500
500 (this color)
#728B17
oklch(59.6% 0.137 121.9)
-
Step 600
600
#677F00
oklch(55.7% 0.135 121.9)
-
Step 700
700
#566A00
oklch(49% 0.118 121.7)
-
Step 800
800
#465700
oklch(42.7% 0.103 121.8)
-
Step 900
900
#3A4803
oklch(37.6% 0.089 121.6)
-
Step 950
950
#222B07
oklch(27.2% 0.057 122.3)
#728B17 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) | #948200 | 0.053 |
| Deuteranopia (no green cones) | #918124 | 0.055 |
| Tritanopia (no blue cones) | #798376 | 0.115 |
| Achromatopsia (no color) | #818181 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728B17
#728B17
oklch(59.6% 0.137 121.9)
- #8F69C2
#8F69C2
oklch(59.7% 0.136 302.2)
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 #728B17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.011
- Dark Yellow Green #728F02 ΔE 0.015
- Swamp Green #748500 ΔE 0.016
- Mossy Green #638B27 ΔE 0.019
- Moss Green #658B38 ΔE 0.025
- Sap Green #5C8B15 ΔE 0.028
- Khaki Green #728639 ΔE 0.032
- Olive #808000 ΔE 0.033
Use #728B17 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.