#39997B
Closest named color: Ocean Green (#3D9973). oklch(61.8% 0.101 169), rgb(57, 153, 123).
Aa
Black text reads best on this color (6.01:1).
About this color
#39997B is a medium-dark, moderately saturated green. In OKLCH its lightness is 62%, its chroma 0.101 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.011 away. Black text reads best on it, at 6.01:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.01:1 |
| White text | 3.49:1 |
Values
| HEX | #39997B |
| RGB | rgb(57, 153, 123) |
| HSL | hsl(161, 46%, 41%) |
| OKLCH | oklch(61.8% 0.101 169) |
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 #39997B | 3.49:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #39997B | 6.01:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #39997B text on white | 3.49:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #39997B text on black | 6.01:1 | AA | Lc -39.5 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD6
oklch(88.4% 0.027 170.2)
-
Step 300
300
#A2CBBB
oklch(80.8% 0.049 169.3)
-
Step 400
400
#6CB198
oklch(70.7% 0.08 168.9)
-
Step 500
500 (this color)
#39997B
oklch(61.8% 0.101 169)
-
Step 600
600
#068768
oklch(55.5% 0.11 169.2)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#025D47
oklch(42.6% 0.084 169.5)
-
Step 900
900
#134D3B
oklch(37.8% 0.067 168.1)
-
Step 950
950
#0E2D23
oklch(27% 0.042 169.1)
#39997B 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) | #958F79 | 0.103 |
| Deuteranopia (no green cones) | #87857D | 0.099 |
| Tritanopia (no blue cones) | #009A90 | 0.033 |
| Achromatopsia (no color) | #898989 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39997B
#39997B
oklch(61.8% 0.101 169)
- #B36B8F
#B36B8F
oklch(61.8% 0.102 349.2)
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 #39997B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.011
- Persian Green #2A9D8F ΔE 0.028
- Blue Green #0F9B8E ΔE 0.029
- Sea #3C9992 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.038
- Viridian #1E9167 ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.042
- Slate Green #658D6D ΔE 0.046
Use #39997B 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.