#339B5E
Closest named color: Light Forest Green (#4F9153). oklch(61.5% 0.133 153.7), rgb(51, 155, 94).
Aa
Black text reads best on this color (5.99:1).
About this color
#339B5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.133 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.031 away. Black text reads best on it, at 5.99:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #339B5E |
| RGB | rgb(51, 155, 94) |
| HSL | hsl(145, 50%, 40%) |
| OKLCH | oklch(61.5% 0.133 153.7) |
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 #339B5E | 3.50:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #339B5E | 5.99:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #339B5E text on white | 3.50:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #339B5E text on black | 5.99:1 | AA | Lc -39.4 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE4
oklch(93.7% 0.019 152.8)
-
Step 200
200
#C8E1CE
oklch(88.6% 0.037 152.8)
-
Step 300
300
#A1CDAE
oklch(80.8% 0.064 154.1)
-
Step 400
400
#6AB482
oklch(70.8% 0.105 153.4)
-
Step 500
500 (this color)
#339B5E
oklch(61.5% 0.133 153.7)
-
Step 600
600
#008A4A
oklch(55.6% 0.141 153.6)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#0F4E2B
oklch(37.6% 0.086 153.8)
-
Step 950
950
#0C2E1A
oklch(27% 0.054 154.4)
#339B5E 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) | #9B8F5A | 0.116 |
| Deuteranopia (no green cones) | #8E8562 | 0.114 |
| Tritanopia (no blue cones) | #00998C | 0.068 |
| Achromatopsia (no color) | #898989 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #339B5E
#339B5E
oklch(61.5% 0.133 153.7)
- #B364A5
#B364A5
oklch(61.5% 0.131 333.9)
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 #339B5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.031
- Ocean Green #3D9973 ΔE 0.033
- Jade #1FA774 ΔE 0.038
- Viridian #1E9167 ΔE 0.039
- Muted Green #5FA052 ΔE 0.042
- Fern Green #548D44 ΔE 0.044
- Sea Green #2E8B57 ΔE 0.048
- Flat Green #699D4C ΔE 0.049
Use #339B5E 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.