#009E37
Closest named color: Irish Green (#019529). oklch(60.9% 0.182 146.8), rgb(0, 158, 55).
Aa
Black text reads best on this color (5.94:1).
About this color
#009E37 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.182 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.027 away. Black text reads best on it, at 5.94:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.94:1 |
| White text | 3.53:1 |
Values
| HEX | #009E37 |
| RGB | rgb(0, 158, 55) |
| HSL | hsl(141, 100%, 31%) |
| OKLCH | oklch(60.9% 0.182 146.8) |
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 #009E37 | 3.53:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #009E37 | 5.94:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #009E37 text on white | 3.53:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #009E37 text on black | 5.94:1 | AA | Lc -39.5 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C5E3C6
oklch(88.6% 0.05 146)
-
Step 300
300
#9BD19F
oklch(81% 0.089 146.6)
-
Step 400
400
#5DB86A
oklch(70.7% 0.142 146.9)
-
Step 500
500 (this color)
#009E37
oklch(60.9% 0.182 146.8)
-
Step 600
600
#008B30
oklch(55.5% 0.165 146.9)
-
Step 700
700
#007527
oklch(49% 0.146 146.9)
-
Step 800
800
#00601E
oklch(42.6% 0.127 146.7)
-
Step 900
900
#005018
oklch(37.6% 0.112 146.9)
-
Step 950
950
#04300E
oklch(27.1% 0.075 147)
#009E37 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) | #A08F2B | 0.140 |
| Deuteranopia (no green cones) | #928440 | 0.140 |
| Tritanopia (no blue cones) | #009A88 | 0.109 |
| Achromatopsia (no color) | #888888 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009E37
#009E37
oklch(60.9% 0.182 146.8)
- #B953BB
#B953BB
oklch(60.9% 0.183 326.8)
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 #009E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.027
- Grass Green #3F9B0B ΔE 0.028
- Grassy Green #419C03 ΔE 0.030
- Kelley Green #009337 ΔE 0.033
- True Green #089404 ΔE 0.036
- Kelly Green #02AB2E ΔE 0.041
- Emerald Green #028F1E ΔE 0.045
- Mid Green #50A747 ΔE 0.052
Use #009E37 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.