#40923B
Closest named color: Fern Green (#548D44). oklch(58.9% 0.147 142.5), rgb(64, 146, 59).
Aa
Black text reads best on this color (5.39:1).
About this color
#40923B is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.147 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.027 away. Black text reads best on it, at 5.39:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.39:1 |
| White text | 3.89:1 |
Values
| HEX | #40923B |
| RGB | rgb(64, 146, 59) |
| HSL | hsl(117, 42%, 40%) |
| OKLCH | oklch(58.9% 0.147 142.5) |
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 #40923B | 3.89:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #40923B | 5.39:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #40923B text on white | 3.89:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #40923B text on black | 5.39:1 | AA | Lc -35.6 | 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 600.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CCE0CA
oklch(88.6% 0.037 142.7)
-
Step 300
300
#A9CCA5
oklch(80.9% 0.066 142.2)
-
Step 400
400
#79B274
oklch(70.8% 0.107 142.5)
-
Step 500
500
#549E4F
oklch(63.2% 0.135 142.5)
-
Step 600
600 (this color)
#40923B
oklch(58.9% 0.147 142.5)
-
Step 700
700
#277323
oklch(49.1% 0.137 142.4)
-
Step 800
800
#225E1F
oklch(42.8% 0.114 142.5)
-
Step 900
900
#224D1F
oklch(37.7% 0.088 142.4)
-
Step 950
950
#152D13
oklch(27% 0.055 142.3)
#40923B 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) | #958532 | 0.106 |
| Deuteranopia (no green cones) | #8B7E42 | 0.107 |
| Tritanopia (no blue cones) | #348E7F | 0.094 |
| Achromatopsia (no color) | #818181 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40923B
#40923B
oklch(58.9% 0.147 142.5)
- #A55BB0
#A55BB0
oklch(58.9% 0.148 322.3)
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 #40923B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.027
- Kelley Green #009337 ΔE 0.028
- Sap Green #5C8B15 ΔE 0.033
- Light Forest Green #4F9153 ΔE 0.034
- Mossy Green #638B27 ΔE 0.035
- Irish Green #019529 ΔE 0.036
- Forest Green #228B22 ΔE 0.038
- Moss Green #658B38 ΔE 0.040
Use #40923B 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.