#309E6F
Closest named color: Ocean Green (#3D9973). oklch(62.5% 0.122 160.8), rgb(48, 158, 111).
Aa
Black text reads best on this color (6.24:1).
About this color
#309E6F is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.122 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.019 away. Black text reads best on it, at 6.24:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.24:1 |
| White text | 3.36:1 |
Values
| HEX | #309E6F |
| RGB | rgb(48, 158, 111) |
| HSL | hsl(154, 53%, 40%) |
| OKLCH | oklch(62.5% 0.122 160.8) |
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 #309E6F | 3.36:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #309E6F | 6.24:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #309E6F text on white | 3.36:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #309E6F text on black | 6.24:1 | AA | Lc -41.0 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE6
oklch(93.6% 0.018 161.1)
-
Step 200
200
#C7E0D2
oklch(88.4% 0.033 161.2)
-
Step 300
300
#9FCDB4
oklch(80.9% 0.06 160.9)
-
Step 400
400
#67B38D
oklch(70.7% 0.095 160.9)
-
Step 500
500 (this color)
#309E6F
oklch(62.5% 0.122 160.8)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734B
oklch(49% 0.11 160.6)
-
Step 800
800
#005E3D
oklch(42.6% 0.095 160.9)
-
Step 900
900
#094E33
oklch(37.6% 0.08 160.7)
-
Step 950
950
#0A2E1E
oklch(27% 0.051 160.6)
#309E6F 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) | #9C926C | 0.116 |
| Deuteranopia (no green cones) | #8E8872 | 0.113 |
| Tritanopia (no blue cones) | #009D91 | 0.051 |
| Achromatopsia (no color) | #8C8C8C | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309E6F
#309E6F
oklch(62.5% 0.122 160.8)
- #B8689E
#B8689E
oklch(62.5% 0.123 340.5)
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 #309E6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.019
- Jade #1FA774 ΔE 0.025
- Viridian #1E9167 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.044
- Seaweed Green #35AD6B ΔE 0.048
- Persian Green #2A9D8F ΔE 0.048
- Muted Green #5FA052 ΔE 0.049
- Blue Green #0F9B8E ΔE 0.049
Use #309E6F 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.