#309D79
Closest named color: Ocean Green (#3D9973). oklch(62.5% 0.112 166.8), rgb(48, 157, 121).
Aa
Black text reads best on this color (6.22:1).
About this color
#309D79 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.112 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.013 away. Black text reads best on it, at 6.22:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.22:1 |
| White text | 3.37:1 |
Values
| HEX | #309D79 |
| RGB | rgb(48, 157, 121) |
| HSL | hsl(160, 53%, 40%) |
| OKLCH | oklch(62.5% 0.112 166.8) |
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 #309D79 | 3.37:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #309D79 | 6.22:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #309D79 text on white | 3.37:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #309D79 text on black | 6.22:1 | AA | Lc -40.8 | 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
#E0EDE7
oklch(93.5% 0.016 166.7)
-
Step 200
200
#C7E0D5
oklch(88.5% 0.03 167.4)
-
Step 300
300
#9FCCB9
oklch(80.8% 0.054 167.3)
-
Step 400
400
#67B295
oklch(70.6% 0.087 167.1)
-
Step 500
500 (this color)
#309D79
oklch(62.5% 0.112 166.8)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#094E39
oklch(37.8% 0.074 166.5)
-
Step 950
950
#0A2E21
oklch(27.1% 0.048 165.4)
#309D79 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) | #999277 | 0.112 |
| Deuteranopia (no green cones) | #8B877B | 0.109 |
| Tritanopia (no blue cones) | #009E93 | 0.038 |
| Achromatopsia (no color) | #8C8C8C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309D79
#309D79
oklch(62.5% 0.112 166.8)
- #B86A95
#B86A95
oklch(62.4% 0.113 346.6)
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 #309D79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.013
- Persian Green #2A9D8F ΔE 0.033
- Jade #1FA774 ΔE 0.033
- Blue Green #0F9B8E ΔE 0.034
- Viridian #1E9167 ΔE 0.042
- Sea #3C9992 ΔE 0.044
- Grey Teal #5E9B8A ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.051
Use #309D79 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.