#73B300
Closest named color: Dark Lime (#84B701). oklch(69.6% 0.189 130.6), rgb(115, 179, 0).
Aa
Black text reads best on this color (8.17:1).
About this color
#73B300 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.189 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Lime (#84B701), ΔE 0.024 away. Black text reads best on it, at 8.17:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.189) |
| Temperature | in between |
| Nearest name | Dark Lime (#84B701) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #73B300 |
| RGB | rgb(115, 179, 0) |
| HSL | hsl(81, 100%, 35%) |
| OKLCH | oklch(69.6% 0.189 130.6) |
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 #73B300 | 2.56:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #73B300 | 8.17:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #73B300 text on white | 2.56:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #73B300 text on black | 8.17:1 | AAA | Lc -52.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F2F8ED
oklch(97.2% 0.016 130.4)
-
Step 100
100
#E2EFD7
oklch(93.6% 0.035 130.5)
-
Step 200
200
#CAE3B5
oklch(88.6% 0.067 130.9)
-
Step 300
300
#A6D07E
oklch(80.8% 0.118 130.7)
-
Step 400
400 (this color)
#73B300
oklch(69.6% 0.189 130.6)
-
Step 500
500
#649D00
oklch(63.2% 0.172 130.7)
-
Step 600
600
#538400
oklch(55.7% 0.152 130.8)
-
Step 700
700
#456F00
oklch(49.2% 0.134 130.8)
-
Step 800
800
#385B00
oklch(42.8% 0.116 130.7)
-
Step 900
900
#2E4C00
oklch(37.8% 0.103 130.7)
-
Step 950
950
#192D00
oklch(27% 0.074 130.9)
#73B300 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) | #BCA500 | 0.102 |
| Deuteranopia (no green cones) | #B3A024 | 0.100 |
| Tritanopia (no blue cones) | #76AB98 | 0.146 |
| Achromatopsia (no color) | #A2A2A2 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73B300
#73B300
oklch(69.6% 0.189 130.6)
- #C276F3
#C276F3
oklch(69.8% 0.189 310.5)
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 #73B300, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lime #84B701 ΔE 0.024
- Dark Lime Green #7EBD01 ΔE 0.032
- Leafy Green #51B73B ΔE 0.032
- Frog Green #58BC08 ΔE 0.032
- Grass #5CAC2D ΔE 0.036
- Leaf #71AA34 ΔE 0.037
- Pea Green #8EAB12 ΔE 0.039
- Icky Green #8FAE22 ΔE 0.039
Use #73B300 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.