#399C45
Closest named color: Grass Green (#3F9B0B). oklch(61.5% 0.155 145.5), rgb(57, 156, 69).
Aa
Black text reads best on this color (6.01:1).
About this color
#399C45 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.155 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.038 away. Black text reads best on it, at 6.01:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.01:1 |
| White text | 3.49:1 |
Values
| HEX | #399C45 |
| RGB | rgb(57, 156, 69) |
| HSL | hsl(127, 46%, 42%) |
| OKLCH | oklch(61.5% 0.155 145.5) |
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 #399C45 | 3.49:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #399C45 | 6.01:1 | AA | Lc 42.0 | Non-text elements, placeholder text |
| #399C45 text on white | 3.49:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #399C45 text on black | 6.01:1 | AA | Lc -39.6 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C8E1C9
oklch(88.5% 0.042 146.3)
-
Step 300
300
#A2CEA3
oklch(80.8% 0.076 145.4)
-
Step 400
400
#6DB571
oklch(70.8% 0.122 145.4)
-
Step 500
500 (this color)
#399C45
oklch(61.5% 0.155 145.5)
-
Step 600
600
#0C8B2A
oklch(55.5% 0.168 145.5)
-
Step 700
700
#007620
oklch(49.2% 0.152 145.5)
-
Step 800
800
#05601A
oklch(42.6% 0.13 145.4)
-
Step 900
900
#144F1C
oklch(37.7% 0.101 145.4)
-
Step 950
950
#0E2E11
oklch(26.9% 0.064 145.2)
#399C45 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) | #9E8E3D | 0.118 |
| Deuteranopia (no green cones) | #92864C | 0.117 |
| Tritanopia (no blue cones) | #219888 | 0.094 |
| Achromatopsia (no color) | #898989 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399C45
#399C45
oklch(61.5% 0.155 145.5)
- #B25FB6
#B25FB6
oklch(61.4% 0.155 325.5)
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 #399C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.038
- Mid Green #50A747 ΔE 0.039
- Kelley Green #009337 ΔE 0.040
- Grassy Green #419C03 ΔE 0.040
- Muted Green #5FA052 ΔE 0.040
- Irish Green #019529 ΔE 0.042
- Light Forest Green #4F9153 ΔE 0.044
- Flat Green #699D4C ΔE 0.046
Use #399C45 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.