#09B537
Closest named color: Shamrock (#01B44C). oklch(67.3% 0.207 145.4), rgb(9, 181, 55).
Aa
Black text reads best on this color (7.67:1).
About this color
#09B537 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.207 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.020 away. Black text reads best on it, at 7.67:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.207) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #09B537 |
| RGB | rgb(9, 181, 55) |
| HSL | hsl(136, 91%, 37%) |
| OKLCH | oklch(67.3% 0.207 145.4) |
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 #09B537 | 2.73:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #09B537 | 7.67:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #09B537 text on white | 2.73:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #09B537 text on black | 7.67:1 | AAA | Lc -49.7 | 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
#EFF9EF
oklch(97.2% 0.017 145.4)
-
Step 100
100
#DBF1DB
oklch(93.6% 0.037 145.3)
-
Step 200
200
#BCE6BD
oklch(88.4% 0.071 145.6)
-
Step 300
300
#88D78C
oklch(80.9% 0.13 145.4)
-
Step 400
400 (this color)
#09B537
oklch(67.3% 0.207 145.4)
-
Step 500
500
#00A630
oklch(63.1% 0.196 145.4)
-
Step 600
600
#008C27
oklch(55.7% 0.173 145.4)
-
Step 700
700
#00761F
oklch(49.2% 0.153 145.3)
-
Step 800
800
#006118
oklch(42.8% 0.133 145.4)
-
Step 900
900
#005113
oklch(37.8% 0.117 145.5)
-
Step 950
950
#003008
oklch(26.9% 0.083 145.6)
#09B537 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) | #B8A324 | 0.155 |
| Deuteranopia (no green cones) | #A89843 | 0.155 |
| Tritanopia (no blue cones) | #00B09C | 0.129 |
| Achromatopsia (no color) | #9C9C9C | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09B537
#09B537
oklch(67.3% 0.207 145.4)
- #D35FDA
#D35FDA
oklch(67.3% 0.207 325.3)
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 #09B537, closest first.
No curated palette has a color within ΔE 0.04 of #09B537.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.020
- Kelly Green #02AB2E ΔE 0.029
- Leafy Green #51B73B ΔE 0.033
- Medium Green #39AD48 ΔE 0.035
- Shamrock Green #02C14D ΔE 0.035
- Grass #5CAC2D ΔE 0.042
- Leaf Green #5CA904 ΔE 0.045
- Frog Green #58BC08 ΔE 0.046
Use #09B537 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.