#37B938
Closest named color: Leafy Green (#51B73B). oklch(69% 0.202 143.1), rgb(55, 185, 56).
Aa
Black text reads best on this color (8.15:1).
About this color
#37B938 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.202 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.017 away. Black text reads best on it, at 8.15:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.202) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.15:1 |
| White text | 2.57:1 |
Values
| HEX | #37B938 |
| RGB | rgb(55, 185, 56) |
| HSL | hsl(120, 54%, 47%) |
| OKLCH | oklch(69% 0.202 143.1) |
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 #37B938 | 2.57:1 | Fails | Lc -54.9 | Large or bold text, headings |
| Black text on #37B938 | 8.15:1 | AAA | Lc 54.2 | Large or bold text, headings |
| #37B938 text on white | 2.57:1 | Fails | Lc 49.8 | Large or bold text, headings |
| #37B938 text on black | 8.15:1 | AAA | Lc -52.1 | 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
#EFF9EE
oklch(97.2% 0.018 142.8)
-
Step 100
100
#DCF1DB
oklch(93.7% 0.037 144)
-
Step 200
200
#BFE6BC
oklch(88.6% 0.07 143.1)
-
Step 300
300
#8ED68A
oklch(81% 0.127 143.1)
-
Step 400
400 (this color)
#37B938
oklch(69% 0.202 143.1)
-
Step 500
500
#00A713
oklch(63.2% 0.211 143.1)
-
Step 600
600
#008C0E
oklch(55.5% 0.185 143.1)
-
Step 700
700
#00760A
oklch(49.1% 0.164 143.1)
-
Step 800
800
#006106
oklch(42.7% 0.143 143.1)
-
Step 900
900
#005104
oklch(37.7% 0.126 143)
-
Step 950
950
#003102
oklch(27.2% 0.09 143.2)
#37B938 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) | #BDA825 | 0.144 |
| Deuteranopia (no green cones) | #AE9D45 | 0.146 |
| Tritanopia (no blue cones) | #0CB49F | 0.128 |
| Achromatopsia (no color) | #A1A1A1 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B938
#37B938
oklch(69% 0.202 143.1)
- #D568E2
#D568E2
oklch(69.1% 0.202 323.3)
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 #37B938, closest first.
No curated palette has a color within ΔE 0.04 of #37B938.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.017
- Shamrock Green #02C14D ΔE 0.024
- Shamrock #01B44C ΔE 0.029
- Frog Green #58BC08 ΔE 0.030
- Grass #5CAC2D ΔE 0.039
- Medium Green #39AD48 ΔE 0.041
- Cool Green #33B864 ΔE 0.044
- Leaf Green #5CA904 ΔE 0.045
Use #37B938 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.