#37A13D
Closest named color: Mid Green (#50A747). oklch(62.7% 0.169 144.1), rgb(55, 161, 61).
Aa
Black text reads best on this color (6.32:1).
About this color
#37A13D is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.169 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.029 away. Black text reads best on it, at 6.32:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.32:1 |
| White text | 3.31:1 |
Values
| HEX | #37A13D |
| RGB | rgb(55, 161, 61) |
| HSL | hsl(123, 49%, 42%) |
| OKLCH | oklch(62.7% 0.169 144.1) |
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 #37A13D | 3.31:1 | AA large text | Lc -65.6 | Content text, not long reading |
| Black text on #37A13D | 6.32:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #37A13D text on white | 3.31:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #37A13D text on black | 6.32:1 | AA | Lc -41.5 | Non-text elements, placeholder text |
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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C8E2C6
oklch(88.6% 0.047 143.2)
-
Step 300
300
#A0CF9F
oklch(80.9% 0.083 144.2)
-
Step 400
400
#69B66A
oklch(70.7% 0.133 144.3)
-
Step 500
500 (this color)
#37A13D
oklch(62.7% 0.169 144.1)
-
Step 600
600
#008C1B
oklch(55.6% 0.18 144)
-
Step 700
700
#007615
oklch(49.1% 0.159 144)
-
Step 800
800
#006110
oklch(42.8% 0.138 144.1)
-
Step 900
900
#0F5015
oklch(37.8% 0.11 144.2)
-
Step 950
950
#0C2F0E
oklch(27.1% 0.07 144.3)
#37A13D 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) | #A49232 | 0.125 |
| Deuteranopia (no green cones) | #978A45 | 0.123 |
| Tritanopia (no blue cones) | #1D9D8C | 0.106 |
| Achromatopsia (no color) | #8D8D8D | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A13D
#37A13D
oklch(62.7% 0.169 144.1)
- #B85FC1
#B85FC1
oklch(62.7% 0.169 323.8)
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 #37A13D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.029
- Grass Green #3F9B0B ΔE 0.030
- Grassy Green #419C03 ΔE 0.030
- Medium Green #39AD48 ΔE 0.035
- Kelly Green #02AB2E ΔE 0.038
- Muted Green #5FA052 ΔE 0.044
- Irish Green #019529 ΔE 0.046
- Grass #5CAC2D ΔE 0.048
Use #37A13D 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.