#339573
Closest named color: Ocean Green (#3D9973). oklch(60.4% 0.105 166.3), rgb(51, 149, 115).
Aa
Black text reads best on this color (5.68:1).
About this color
#339573 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.105 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.015 away. Black text reads best on it, at 5.68:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #339573 |
| RGB | rgb(51, 149, 115) |
| HSL | hsl(159, 49%, 39%) |
| OKLCH | oklch(60.4% 0.105 166.3) |
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 #339573 | 3.69:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #339573 | 5.68:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #339573 text on white | 3.69:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #339573 text on black | 5.68:1 | AA | Lc -37.5 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD5
oklch(88.4% 0.028 167.7)
-
Step 300
300
#A2CCB9
oklch(81% 0.052 165.8)
-
Step 400
400
#6CB195
oklch(70.6% 0.082 166.3)
-
Step 500
500 (this color)
#339573
oklch(60.4% 0.105 166.3)
-
Step 600
600
#038864
oklch(55.6% 0.114 166.3)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#015E44
oklch(42.8% 0.088 166.2)
-
Step 900
900
#124D39
oklch(37.7% 0.069 166)
-
Step 950
950
#0D2D22
oklch(27% 0.043 167.5)
#339573 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) | #928B71 | 0.105 |
| Deuteranopia (no green cones) | #848175 | 0.101 |
| Tritanopia (no blue cones) | #00958B | 0.037 |
| Achromatopsia (no color) | #858585 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #339573
#339573
oklch(60.4% 0.105 166.3)
- #AE668E
#AE668E
oklch(60.3% 0.105 346.3)
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 #339573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.015
- Viridian #1E9167 ΔE 0.024
- Blue Green #0F9B8E ΔE 0.038
- Persian Green #2A9D8F ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.042
- Sea Green #2E8B57 ΔE 0.044
- Slate Green #658D6D ΔE 0.046
Use #339573 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.