#37AF05
Closest named color: Kelly Green (#02AB2E). oklch(66.1% 0.211 139.9), rgb(55, 175, 5).
Aa
Black text reads best on this color (7.29:1).
About this color
#37AF05 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.211 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.026 away. Black text reads best on it, at 7.29:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.211) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.29:1 |
| White text | 2.87:1 |
Values
| HEX | #37AF05 |
| RGB | rgb(55, 175, 5) |
| HSL | hsl(102, 94%, 35%) |
| OKLCH | oklch(66.1% 0.211 139.9) |
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 #37AF05 | 2.87:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #37AF05 | 7.29:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #37AF05 text on white | 2.87:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #37AF05 text on black | 7.29:1 | AAA | Lc -47.4 | 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 500.
-
Step 50
50
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E0EFDC
oklch(93.6% 0.03 139.1)
-
Step 200
200
#C6E3BF
oklch(88.5% 0.057 139.6)
-
Step 300
300
#9DD191
oklch(80.8% 0.103 139.8)
-
Step 400
400
#63B94F
oklch(70.8% 0.166 139.9)
-
Step 500
500 (this color)
#37AF05
oklch(66.1% 0.211 139.9)
-
Step 600
600
#298A00
oklch(55.5% 0.178 139.9)
-
Step 700
700
#217400
oklch(49% 0.157 139.9)
-
Step 800
800
#196000
oklch(42.8% 0.138 140)
-
Step 900
900
#145000
oklch(37.8% 0.121 139.9)
-
Step 950
950
#083000
oklch(27.1% 0.087 140)
#37AF05 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) | #B49E00 | 0.143 |
| Deuteranopia (no green cones) | #A69526 | 0.140 |
| Tritanopia (no blue cones) | #20A994 | 0.142 |
| Achromatopsia (no color) | #989898 | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37AF05
#37AF05
oklch(66.1% 0.211 139.9)
- #C95DE1
#C95DE1
oklch(66.2% 0.211 320)
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 #37AF05, closest first.
No curated palette has a color within ΔE 0.04 of #37AF05.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.026
- Leaf Green #5CA904 ΔE 0.030
- Grass #5CAC2D ΔE 0.036
- Shamrock #01B44C ΔE 0.038
- Leafy Green #51B73B ΔE 0.040
- Medium Green #39AD48 ΔE 0.041
- Frog Green #58BC08 ΔE 0.047
- Grassy Green #419C03 ΔE 0.054
Use #37AF05 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.