#37AC83
Closest named color: Dark Seafoam Green (#3EAF76). oklch(66.9% 0.121 165.6), rgb(55, 172, 131).
Aa
Black text reads best on this color (7.39:1).
About this color
#37AC83 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.121 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.023 away. Black text reads best on it, at 7.39:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.39:1 |
| White text | 2.84:1 |
Values
| HEX | #37AC83 |
| RGB | rgb(55, 172, 131) |
| HSL | hsl(159, 52%, 45%) |
| OKLCH | oklch(66.9% 0.121 165.6) |
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 #37AC83 | 2.84:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #37AC83 | 7.39:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #37AC83 text on white | 2.84:1 | Fails | Lc 54.1 | Large or bold text, headings |
| #37AC83 text on black | 7.39:1 | AAA | Lc -47.7 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE7
oklch(93.7% 0.018 164.6)
-
Step 200
200
#C6E0D4
oklch(88.4% 0.032 166.2)
-
Step 300
300
#9DCDB8
oklch(80.8% 0.058 166.3)
-
Step 400
400
#62B393
oklch(70.6% 0.094 166.2)
-
Step 500
500 (this color)
#37AC83
oklch(66.9% 0.121 165.6)
-
Step 600
600
#008863
oklch(55.6% 0.116 165.8)
-
Step 700
700
#007353
oklch(49.2% 0.103 165.6)
-
Step 800
800
#005E43
oklch(42.7% 0.089 165.5)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#072E21
oklch(27% 0.049 166.4)
#37AC83 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) | #A8A081 | 0.119 |
| Deuteranopia (no green cones) | #999586 | 0.116 |
| Tritanopia (no blue cones) | #00ACA1 | 0.044 |
| Achromatopsia (no color) | #999999 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37AC83
#37AC83
oklch(66.9% 0.121 165.6)
- #C975A5
#C975A5
oklch(66.9% 0.12 345.5)
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 #37AC83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.023
- Bluey Green #2BB179 ΔE 0.024
- Jade #1FA774 ΔE 0.027
- Greeny Blue #42B395 ΔE 0.030
- Tea #65AB7C ΔE 0.034
- Dark Seafoam #1FB57A ΔE 0.034
- Seaweed Green #35AD6B ΔE 0.034
- Medium Sea Green #3CB371 ΔE 0.037
Use #37AC83 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.