#37B65E
Closest named color: Cool Green (#33B864). oklch(68.7% 0.168 149.5), rgb(55, 182, 94).
Aa
Black text reads best on this color (8.01:1).
About this color
#37B65E is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.168 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.007 away. Black text reads best on it, at 8.01:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.01:1 |
| White text | 2.62:1 |
Values
| HEX | #37B65E |
| RGB | rgb(55, 182, 94) |
| HSL | hsl(138, 54%, 46%) |
| OKLCH | oklch(68.7% 0.168 149.5) |
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 #37B65E | 2.62:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #37B65E | 8.01:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #37B65E text on white | 2.62:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #37B65E text on black | 8.01:1 | AAA | Lc -51.2 | 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
#EFF8F0
oklch(97% 0.014 148.8)
-
Step 100
100
#DDF0DF
oklch(93.6% 0.03 148.4)
-
Step 200
200
#BFE5C5
oklch(88.6% 0.059 149.6)
-
Step 300
300
#8FD49C
oklch(80.9% 0.105 149.5)
-
Step 400
400 (this color)
#37B65E
oklch(68.7% 0.168 149.5)
-
Step 500
500
#00A549
oklch(63.1% 0.176 149.5)
-
Step 600
600
#008B3C
oklch(55.6% 0.155 149.4)
-
Step 700
700
#007532
oklch(49.1% 0.137 149.6)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#005020
oklch(37.7% 0.105 149.6)
-
Step 950
950
#003010
oklch(27% 0.075 149.4)
#37B65E 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) | #B7A657 | 0.137 |
| Deuteranopia (no green cones) | #A89C64 | 0.135 |
| Tritanopia (no blue cones) | #00B3A1 | 0.093 |
| Achromatopsia (no color) | #A0A0A0 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B65E
#37B65E
oklch(68.7% 0.168 149.5)
- #D270CC
#D270CC
oklch(68.8% 0.167 329.5)
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 #37B65E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.007
- Dark Pastel Green #56AE57 ΔE 0.026
- Shamrock #01B44C ΔE 0.028
- Medium Sea Green #3CB371 ΔE 0.028
- Jade Green #2BAF6A ΔE 0.029
- Medium Green #39AD48 ΔE 0.030
- Dark Mint Green #20C073 ΔE 0.031
- Green Teal #0CB577 ΔE 0.032
Use #37B65E 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.