#37B117
Closest named color: Kelly Green (#02AB2E). oklch(66.7% 0.209 140.6), rgb(55, 177, 23).
Aa
Black text reads best on this color (7.46:1).
About this color
#37B117 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.209 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.028 away. Black text reads best on it, at 7.46:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.209) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.46:1 |
| White text | 2.81:1 |
Values
| HEX | #37B117 |
| RGB | rgb(55, 177, 23) |
| HSL | hsl(108, 77%, 39%) |
| OKLCH | oklch(66.7% 0.209 140.6) |
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 #37B117 | 2.81:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #37B117 | 7.46:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #37B117 text on white | 2.81:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #37B117 text on black | 7.46:1 | AAA | Lc -48.3 | 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
#E0EFDD
oklch(93.6% 0.029 140.5)
-
Step 200
200
#C6E3C0
oklch(88.5% 0.056 140.3)
-
Step 300
300
#9DD193
oklch(80.9% 0.101 140.5)
-
Step 400
400
#62B951
oklch(70.8% 0.164 140.5)
-
Step 500
500 (this color)
#37B117
oklch(66.7% 0.209 140.6)
-
Step 600
600
#238B00
oklch(55.6% 0.181 140.6)
-
Step 700
700
#1C7500
oklch(49.2% 0.16 140.5)
-
Step 800
800
#156000
oklch(42.7% 0.139 140.6)
-
Step 900
900
#105000
oklch(37.7% 0.123 140.6)
-
Step 950
950
#073001
oklch(27.1% 0.087 140.7)
#37B117 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) | #B6A000 | 0.143 |
| Deuteranopia (no green cones) | #A8962D | 0.142 |
| Tritanopia (no blue cones) | #1EAB96 | 0.139 |
| Achromatopsia (no color) | #9A9A9A | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B117
#37B117
oklch(66.7% 0.209 140.6)
- #CB5FE1
#CB5FE1
oklch(66.7% 0.209 320.6)
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 #37B117, closest first.
No curated palette has a color within ΔE 0.04 of #37B117.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.028
- Leaf Green #5CA904 ΔE 0.031
- Shamrock #01B44C ΔE 0.034
- Leafy Green #51B73B ΔE 0.034
- Grass #5CAC2D ΔE 0.034
- Medium Green #39AD48 ΔE 0.038
- Frog Green #58BC08 ΔE 0.042
- Shamrock Green #02C14D ΔE 0.048
Use #37B117 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.