#39971E
Closest named color: Grass Green (#3F9B0B). oklch(59.7% 0.177 139.9), rgb(57, 151, 30).
Aa
Black text reads best on this color (5.61:1).
About this color
#39971E is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.177 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.016 away. Black text reads best on it, at 5.61:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 5.61:1 |
| White text | 3.73:1 |
Values
| HEX | #39971E |
| RGB | rgb(57, 151, 30) |
| HSL | hsl(107, 67%, 35%) |
| OKLCH | oklch(59.7% 0.177 139.9) |
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 #39971E | 3.73:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #39971E | 5.61:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #39971E text on white | 3.73:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #39971E text on black | 5.61:1 | AA | Lc -37.2 | 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
#F1F7F0
oklch(97% 0.011 141.3)
-
Step 100
100
#E1EEDF
oklch(93.5% 0.024 141.5)
-
Step 200
200
#C9E1C4
oklch(88.4% 0.047 140.3)
-
Step 300
300
#A3CF9A
oklch(80.9% 0.087 140.3)
-
Step 400
400
#6FB560
oklch(70.6% 0.138 140.1)
-
Step 500
500 (this color)
#39971E
oklch(59.7% 0.177 139.9)
-
Step 600
600
#298A00
oklch(55.5% 0.178 139.9)
-
Step 700
700
#217400
oklch(49% 0.157 139.9)
-
Step 800
800
#196000
oklch(42.8% 0.138 140)
-
Step 900
900
#184F07
oklch(37.7% 0.115 139.9)
-
Step 950
950
#102F08
oklch(27.2% 0.074 139.8)
#39971E 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) | #9B8900 | 0.117 |
| Deuteranopia (no green cones) | #90812C | 0.119 |
| Tritanopia (no blue cones) | #2C9281 | 0.120 |
| Achromatopsia (no color) | #848484 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39971E
#39971E
oklch(59.7% 0.177 139.9)
- #AC55C0
#AC55C0
oklch(59.7% 0.177 319.8)
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 #39971E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.016
- Grassy Green #419C03 ΔE 0.020
- Irish Green #019529 ΔE 0.023
- True Green #089404 ΔE 0.027
- Kelley Green #009337 ΔE 0.031
- Emerald Green #028F1E ΔE 0.036
- Forest Green #228B22 ΔE 0.041
- Sap Green #5C8B15 ΔE 0.043
Use #39971E 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.