#339B5B
Closest named color: Light Forest Green (#4F9153). oklch(61.4% 0.135 152.6), rgb(51, 155, 91).
Aa
Black text reads best on this color (5.98:1).
About this color
#339B5B is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.135 and its hue 153°. 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 5.98:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.98:1 |
| White text | 3.51:1 |
Values
| HEX | #339B5B |
| RGB | rgb(51, 155, 91) |
| HSL | hsl(143, 50%, 40%) |
| OKLCH | oklch(61.4% 0.135 152.6) |
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 #339B5B | 3.51:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #339B5B | 5.98:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #339B5B text on white | 3.51:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #339B5B text on black | 5.98:1 | 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
#A1CEAC
oklch(81% 0.067 152.2)
-
Step 400
400
#6AB480
oklch(70.7% 0.107 152.4)
-
Step 500
500 (this color)
#339B5B
oklch(61.4% 0.135 152.6)
-
Step 600
600
#008A47
oklch(55.5% 0.144 152.6)
-
Step 700
700
#00743B
oklch(49% 0.127 152.7)
-
Step 800
800
#005F2F
oklch(42.5% 0.11 152.7)
-
Step 900
900
#0F4F29
oklch(37.8% 0.09 152.3)
-
Step 950
950
#0C2E19
oklch(27% 0.056 153.2)
#339B5B 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) | #9B8E56 | 0.116 |
| Deuteranopia (no green cones) | #8E855F | 0.114 |
| Tritanopia (no blue cones) | #00998B | 0.070 |
| Achromatopsia (no color) | #898989 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #339B5B
#339B5B
oklch(61.4% 0.135 152.6)
- #B363A7
#B363A7
oklch(61.4% 0.135 332.8)
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 #339B5B, 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 0.037
- Jade #1FA774 ΔE 0.039
- Viridian #1E9167 ΔE 0.041
- Muted Green #5FA052 ΔE 0.041
- Fern Green #548D44 ΔE 0.043
- Flat Green #699D4C ΔE 0.048
- Sea Green #2E8B57 ΔE 0.049
Use #339B5B 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.