#399D63
Closest named color: Ocean Green (#3D9973). oklch(62.3% 0.128 154.4), rgb(57, 157, 99).
Aa
Black text reads best on this color (6.17:1).
About this color
#399D63 is a medium-light, moderately saturated green. In OKLCH its lightness is 62%, its chroma 0.128 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.029 away. Black text reads best on it, at 6.17:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.17:1 |
| White text | 3.39:1 |
Values
| HEX | #399D63 |
| RGB | rgb(57, 157, 99) |
| HSL | hsl(145, 47%, 42%) |
| OKLCH | oklch(62.3% 0.128 154.4) |
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 #399D63 | 3.39:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #399D63 | 6.17:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #399D63 text on white | 3.39:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #399D63 text on black | 6.17:1 | AA | Lc -40.5 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE4
oklch(93.7% 0.019 152.8)
-
Step 200
200
#C8E0CF
oklch(88.4% 0.034 154.8)
-
Step 300
300
#A2CDAF
oklch(80.9% 0.062 154.4)
-
Step 400
400
#6BB384
oklch(70.6% 0.101 154.4)
-
Step 500
500 (this color)
#399D63
oklch(62.3% 0.128 154.4)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#124E2D
oklch(37.7% 0.083 154.6)
-
Step 950
950
#0D2E1A
oklch(27% 0.054 153.9)
#399D63 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) | #9D915F | 0.113 |
| Deuteranopia (no green cones) | #8F8767 | 0.111 |
| Tritanopia (no blue cones) | #0A9B8E | 0.064 |
| Achromatopsia (no color) | #8B8B8B | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399D63
#399D63
oklch(62.3% 0.128 154.4)
- #B567A6
#B567A6
oklch(62.2% 0.128 334.5)
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 #399D63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.029
- Jade #1FA774 ΔE 0.030
- Light Forest Green #4F9153 ΔE 0.035
- Muted Green #5FA052 ΔE 0.038
- Viridian #1E9167 ΔE 0.043
- Flat Green #699D4C ΔE 0.045
- Seaweed Green #35AD6B ΔE 0.046
- Fern Green #548D44 ΔE 0.050
Use #399D63 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.