#399663
Closest named color: Ocean Green (#3D9973). oklch(60.4% 0.118 156.1), rgb(57, 150, 99).
Aa
Black text reads best on this color (5.71:1).
About this color
#399663 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.118 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 5.71:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #399663 |
| RGB | rgb(57, 150, 99) |
| HSL | hsl(147, 45%, 41%) |
| OKLCH | oklch(60.4% 0.118 156.1) |
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 #399663 | 3.67:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #399663 | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #399663 text on white | 3.67:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #399663 text on black | 5.71:1 | AA | Lc -37.6 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E1EDE5
oklch(93.5% 0.017 156.9)
-
Step 200
200
#C9E0D0
oklch(88.5% 0.033 155.3)
-
Step 300
300
#A3CCB1
oklch(80.8% 0.058 156)
-
Step 400
400
#6FB288
oklch(70.7% 0.092 155.7)
-
Step 500
500 (this color)
#399663
oklch(60.4% 0.118 156.1)
-
Step 600
600
#168952
oklch(55.7% 0.129 155.8)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#0B5E37
oklch(42.6% 0.098 156.1)
-
Step 900
900
#164D30
oklch(37.6% 0.076 156.4)
-
Step 950
950
#0F2D1C
oklch(26.9% 0.048 156.1)
#399663 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) | #958B60 | 0.106 |
| Deuteranopia (no green cones) | #898266 | 0.104 |
| Tritanopia (no blue cones) | #119589 | 0.057 |
| Achromatopsia (no color) | #858585 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399663
#399663
oklch(60.4% 0.118 156.1)
- #AD649C
#AD649C
oklch(60.4% 0.119 336.2)
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 #399663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Light Forest Green #4F9153 ΔE 0.023
- Viridian #1E9167 ΔE 0.024
- Sea Green #2E8B57 ΔE 0.036
- Fern Green #548D44 ΔE 0.040
- Jade #1FA774 ΔE 0.048
- Dark Sage #598556 ΔE 0.051
- Muted Green #5FA052 ΔE 0.053
Use #399663 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.