#37A442
Closest named color: Mid Green (#50A747). oklch(63.5% 0.169 144.8), rgb(55, 164, 66).
Aa
Black text reads best on this color (6.55:1).
About this color
#37A442 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.169 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.022 away. Black text reads best on it, at 6.55:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #37A442 |
| RGB | rgb(55, 164, 66) |
| HSL | hsl(126, 50%, 43%) |
| OKLCH | oklch(63.5% 0.169 144.8) |
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 #37A442 | 3.20:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #37A442 | 6.55:1 | AA | Lc 45.2 | Large or bold text, headings |
| #37A442 text on white | 3.20:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #37A442 text on black | 6.55:1 | AA | Lc -42.9 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C7E2C7
oklch(88.6% 0.046 145.2)
-
Step 300
300
#A0CFA0
oklch(80.9% 0.082 144.8)
-
Step 400
400
#68B66B
oklch(70.7% 0.132 144.8)
-
Step 500
500 (this color)
#37A442
oklch(63.5% 0.169 144.8)
-
Step 600
600
#008C23
oklch(55.6% 0.175 144.9)
-
Step 700
700
#00761C
oklch(49.2% 0.155 144.9)
-
Step 800
800
#006115
oklch(42.8% 0.135 144.8)
-
Step 900
900
#0C5016
oklch(37.8% 0.111 144.9)
-
Step 950
950
#0B2F0E
oklch(27% 0.07 144.7)
#37A442 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) | #A79538 | 0.127 |
| Deuteranopia (no green cones) | #9A8C4A | 0.127 |
| Tritanopia (no blue cones) | #19A08F | 0.104 |
| Achromatopsia (no color) | #909090 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A442
#37A442
oklch(63.5% 0.169 144.8)
- #BC61C2
#BC61C2
oklch(63.5% 0.169 325)
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 #37A442, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.022
- Medium Green #39AD48 ΔE 0.026
- Kelly Green #02AB2E ΔE 0.035
- Grassy Green #419C03 ΔE 0.037
- Grass Green #3F9B0B ΔE 0.037
- Muted Green #5FA052 ΔE 0.042
- Grass #5CAC2D ΔE 0.042
- Shamrock #01B44C ΔE 0.045
Use #37A442 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.