#37AC58
Closest named color: Medium Green (#39AD48). oklch(66% 0.16 149), rgb(55, 172, 88).
Aa
Black text reads best on this color (7.20:1).
About this color
#37AC58 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.160 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.018 away. Black text reads best on it, at 7.20:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.20:1 |
| White text | 2.91:1 |
Values
| HEX | #37AC58 |
| RGB | rgb(55, 172, 88) |
| HSL | hsl(137, 52%, 45%) |
| OKLCH | oklch(66% 0.16 149) |
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 #37AC58 | 2.91:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #37AC58 | 7.20:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #37AC58 text on white | 2.91:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #37AC58 text on black | 7.20:1 | AAA | Lc -46.7 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C6E2CA
oklch(88.6% 0.044 149.4)
-
Step 300
300
#9ECFA5
oklch(80.9% 0.078 148.7)
-
Step 400
400
#64B675
oklch(70.7% 0.124 149.1)
-
Step 500
500 (this color)
#37AC58
oklch(66% 0.16 149)
-
Step 600
600
#008B3A
oklch(55.6% 0.157 148.9)
-
Step 700
700
#007530
oklch(49.1% 0.138 149)
-
Step 800
800
#006026
oklch(42.7% 0.12 149)
-
Step 900
900
#03501F
oklch(37.7% 0.105 148.9)
-
Step 950
950
#082F13
oklch(27% 0.066 148.9)
#37AC58 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) | #AD9D51 | 0.129 |
| Deuteranopia (no green cones) | #9F935E | 0.129 |
| Tritanopia (no blue cones) | #00A998 | 0.089 |
| Achromatopsia (no color) | #979797 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37AC58
#37AC58
oklch(66% 0.16 149)
- #C66AC1
#C66AC1
oklch(66% 0.159 329.2)
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 #37AC58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.018
- Jade Green #2BAF6A ΔE 0.020
- Mid Green #50A747 ΔE 0.021
- Seaweed Green #35AD6B ΔE 0.023
- Dark Pastel Green #56AE57 ΔE 0.023
- Algae #54AC68 ΔE 0.031
- Fern #63A950 ΔE 0.032
- Medium Sea Green #3CB371 ΔE 0.033
Use #37AC58 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.