#009F42
Closest named color: Irish Green (#019529). oklch(61.3% 0.175 148.6), rgb(0, 159, 66).
Aa
Black text reads best on this color (6.03:1).
About this color
#009F42 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.175 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.033 away. Black text reads best on it, at 6.03:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 6.03:1 |
| White text | 3.47:1 |
Values
| HEX | #009F42 |
| RGB | rgb(0, 159, 66) |
| HSL | hsl(145, 100%, 31%) |
| OKLCH | oklch(61.3% 0.175 148.6) |
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 #009F42 | 3.47:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #009F42 | 6.03:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #009F42 text on white | 3.47:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #009F42 text on black | 6.03:1 | AA | Lc -40.1 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE1
oklch(93.6% 0.025 149.1)
-
Step 200
200
#C5E2C8
oklch(88.4% 0.047 148.1)
-
Step 300
300
#9AD0A2
oklch(80.8% 0.085 148.7)
-
Step 400
400
#5DB86F
oklch(70.8% 0.137 148.4)
-
Step 500
500 (this color)
#009F42
oklch(61.3% 0.175 148.6)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#043011
oklch(27.2% 0.072 148.7)
#009F42 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) | #A09039 | 0.138 |
| Deuteranopia (no green cones) | #92854A | 0.139 |
| Tritanopia (no blue cones) | #009C8B | 0.101 |
| Achromatopsia (no color) | #898989 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009F42
#009F42
oklch(61.3% 0.175 148.6)
- #BA57B7
#BA57B7
oklch(61.3% 0.174 328.6)
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 #009F42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.033
- Grass Green #3F9B0B ΔE 0.035
- Kelley Green #009337 ΔE 0.035
- Grassy Green #419C03 ΔE 0.037
- Kelly Green #02AB2E ΔE 0.044
- True Green #089404 ΔE 0.045
- Mid Green #50A747 ΔE 0.047
- Medium Green #39AD48 ΔE 0.049
Use #009F42 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.