#399556
Closest named color: Light Forest Green (#4F9153). oklch(59.9% 0.129 150.9), rgb(57, 149, 86).
Aa
Black text reads best on this color (5.60:1).
About this color
#399556 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.129 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.019 away. Black text reads best on it, at 5.60:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #399556 |
| RGB | rgb(57, 149, 86) |
| HSL | hsl(139, 45%, 40%) |
| OKLCH | oklch(59.9% 0.129 150.9) |
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 #399556 | 3.74:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #399556 | 5.60:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #399556 text on white | 3.74:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #399556 text on black | 5.60:1 | AA | Lc -37.0 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EEE4
oklch(93.7% 0.018 150.5)
-
Step 200
200
#C9E0CE
oklch(88.5% 0.035 152)
-
Step 300
300
#A4CDAC
oklch(81% 0.063 150.6)
-
Step 400
400
#70B380
oklch(70.8% 0.101 150.7)
-
Step 500
500 (this color)
#399556
oklch(59.9% 0.129 150.9)
-
Step 600
600
#1A8945
oklch(55.5% 0.14 150.8)
-
Step 700
700
#057437
oklch(49% 0.13 151)
-
Step 800
800
#0E5F2E
oklch(42.7% 0.108 151)
-
Step 900
900
#174E29
oklch(37.8% 0.085 150.8)
-
Step 950
950
#102E18
oklch(27.1% 0.054 150.1)
#399556 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) | #968951 | 0.109 |
| Deuteranopia (no green cones) | #8A815A | 0.107 |
| Tritanopia (no blue cones) | #1C9385 | 0.069 |
| Achromatopsia (no color) | #848484 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399556
#399556
oklch(59.9% 0.129 150.9)
- #AB61A3
#AB61A3
oklch(59.9% 0.129 331.1)
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 #399556, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.019
- Fern Green #548D44 ΔE 0.030
- Viridian #1E9167 ΔE 0.031
- Sea Green #2E8B57 ΔE 0.033
- Ocean Green #3D9973 ΔE 0.039
- Kelley Green #009337 ΔE 0.046
- Moss Green #658B38 ΔE 0.047
- Muted Green #5FA052 ΔE 0.050
Use #399556 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.