#009F1B
Closest named color: Grass Green (#3F9B0B). oklch(61% 0.2 143.7), rgb(0, 159, 27).
Aa
Black text reads best on this color (5.97:1).
About this color
#009F1B is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.200 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.023 away. Black text reads best on it, at 5.97:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 5.97:1 |
| White text | 3.51:1 |
Values
| HEX | #009F1B |
| RGB | rgb(0, 159, 27) |
| HSL | hsl(130, 100%, 31%) |
| OKLCH | oklch(61% 0.2 143.7) |
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 #009F1B | 3.51:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #009F1B | 5.97:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #009F1B text on white | 3.51:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #009F1B text on black | 5.97:1 | AA | Lc -39.8 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C5E3C3
oklch(88.5% 0.054 143.4)
-
Step 300
300
#9AD198
oklch(80.8% 0.097 143.8)
-
Step 400
400
#5DB95D
oklch(70.7% 0.156 143.7)
-
Step 500
500 (this color)
#009F1B
oklch(61% 0.2 143.7)
-
Step 600
600
#008C17
oklch(55.5% 0.182 143.7)
-
Step 700
700
#007611
oklch(49.1% 0.161 143.6)
-
Step 800
800
#00610C
oklch(42.7% 0.14 143.6)
-
Step 900
900
#005109
oklch(37.7% 0.123 143.7)
-
Step 950
950
#043006
oklch(27% 0.083 143.5)
#009F1B 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) | #A28F00 | 0.144 |
| Deuteranopia (no green cones) | #94852C | 0.143 |
| Tritanopia (no blue cones) | #009A87 | 0.128 |
| Achromatopsia (no color) | #898989 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009F1B
#009F1B
oklch(61% 0.2 143.7)
- #BA4EC5
#BA4EC5
oklch(60.9% 0.2 323.9)
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 #009F1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.023
- Grassy Green #419C03 ΔE 0.024
- True Green #089404 ΔE 0.032
- Irish Green #019529 ΔE 0.033
- Kelly Green #02AB2E ΔE 0.035
- Kelley Green #009337 ΔE 0.045
- Emerald Green #028F1E ΔE 0.049
- Medium Green #39AD48 ΔE 0.057
Use #009F1B 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.