#399537
Closest named color: Kelley Green (#009337). oklch(59.4% 0.158 142.9), rgb(57, 149, 55).
Aa
Black text reads best on this color (5.52:1).
About this color
#399537 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.158 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.024 away. Black text reads best on it, at 5.52:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.52:1 |
| White text | 3.79:1 |
Values
| HEX | #399537 |
| RGB | rgb(57, 149, 55) |
| HSL | hsl(119, 46%, 40%) |
| OKLCH | oklch(59.4% 0.158 142.9) |
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 #399537 | 3.79:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #399537 | 5.52:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #399537 text on white | 3.79:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #399537 text on black | 5.52:1 | AA | Lc -36.5 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#C9E1C7
oklch(88.5% 0.043 143.1)
-
Step 300
300
#A4CEA0
oklch(80.9% 0.078 142.6)
-
Step 400
400
#70B46C
oklch(70.6% 0.123 142.9)
-
Step 500
500 (this color)
#399537
oklch(59.4% 0.158 142.9)
-
Step 600
600
#1E8B1F
oklch(55.7% 0.172 142.9)
-
Step 700
700
#0B7610
oklch(49.2% 0.16 143)
-
Step 800
800
#116012
oklch(42.7% 0.132 142.9)
-
Step 900
900
#184F17
oklch(37.8% 0.104 142.9)
-
Step 950
950
#102E0F
oklch(26.9% 0.065 143)
#399537 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) | #98882C | 0.113 |
| Deuteranopia (no green cones) | #8D803F | 0.114 |
| Tritanopia (no blue cones) | #289181 | 0.100 |
| Achromatopsia (no color) | #838383 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399537
#399537
oklch(59.4% 0.158 142.9)
- #AA59B4
#AA59B4
oklch(59.4% 0.158 323.1)
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 #399537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.024
- Irish Green #019529 ΔE 0.027
- Grass Green #3F9B0B ΔE 0.035
- Sap Green #5C8B15 ΔE 0.038
- Forest Green #228B22 ΔE 0.038
- Emerald Green #028F1E ΔE 0.038
- Grassy Green #419C03 ΔE 0.038
- Fern Green #548D44 ΔE 0.039
Use #399537 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.