#37B034
Closest named color: Shamrock (#01B44C). oklch(66.6% 0.194 142.7), rgb(55, 176, 52).
Aa
Black text reads best on this color (7.42:1).
About this color
#37B034 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.194 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.021 away. Black text reads best on it, at 7.42:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.194) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.42:1 |
| White text | 2.82:1 |
Values
| HEX | #37B034 |
| RGB | rgb(55, 176, 52) |
| HSL | hsl(119, 54%, 45%) |
| OKLCH | oklch(66.6% 0.194 142.7) |
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 #37B034 | 2.82:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #37B034 | 7.42:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #37B034 text on white | 2.82:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #37B034 text on black | 7.42:1 | AAA | Lc -48.0 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDE
oklch(93.6% 0.028 142)
-
Step 200
200
#C6E3C3
oklch(88.6% 0.053 142.6)
-
Step 300
300
#9DD198
oklch(81% 0.096 142.5)
-
Step 400
400
#62B85D
oklch(70.7% 0.152 142.7)
-
Step 500
500 (this color)
#37B034
oklch(66.6% 0.194 142.7)
-
Step 600
600
#008C05
oklch(55.5% 0.187 142.7)
-
Step 700
700
#007603
oklch(49% 0.166 142.7)
-
Step 800
800
#006102
oklch(42.7% 0.144 142.7)
-
Step 900
900
#015103
oklch(37.7% 0.126 142.8)
-
Step 950
950
#073007
oklch(27.1% 0.081 143)
#37B034 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) | #B4A021 | 0.138 |
| Deuteranopia (no green cones) | #A69640 | 0.138 |
| Tritanopia (no blue cones) | #17AB97 | 0.124 |
| Achromatopsia (no color) | #9A9A9A | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B034
#37B034
oklch(66.6% 0.194 142.7)
- #CA63D8
#CA63D8
oklch(66.6% 0.194 322.7)
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 #37B034, closest first.
No curated palette has a color within ΔE 0.04 of #37B034.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.021
- Medium Green #39AD48 ΔE 0.022
- Kelly Green #02AB2E ΔE 0.025
- Grass #5CAC2D ΔE 0.026
- Leafy Green #51B73B ΔE 0.029
- Leaf Green #5CA904 ΔE 0.030
- Mid Green #50A747 ΔE 0.039
- Dark Pastel Green #56AE57 ΔE 0.045
Use #37B034 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.