#40A841
Closest named color: Medium Green (#39AD48). oklch(64.9% 0.171 143.4), rgb(64, 168, 65).
Aa
Black text reads best on this color (6.89:1).
About this color
#40A841 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.171 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.014 away. Black text reads best on it, at 6.89:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #40A841 |
| RGB | rgb(64, 168, 65) |
| HSL | hsl(121, 45%, 45%) |
| OKLCH | oklch(64.9% 0.171 143.4) |
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 #40A841 | 3.04:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #40A841 | 6.89:1 | AA | Lc 47.2 | Large or bold text, headings |
| #40A841 text on white | 3.04:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #40A841 text on black | 6.89:1 | AA | Lc -44.9 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C8E2C6
oklch(88.6% 0.047 143.2)
-
Step 300
300
#A1CF9E
oklch(80.9% 0.083 143.2)
-
Step 400
400
#6AB668
oklch(70.8% 0.134 143.5)
-
Step 500
500 (this color)
#40A841
oklch(64.9% 0.171 143.4)
-
Step 600
600
#008C13
oklch(55.5% 0.183 143.4)
-
Step 700
700
#00760F
oklch(49.1% 0.162 143.5)
-
Step 800
800
#00610A
oklch(42.7% 0.141 143.4)
-
Step 900
900
#105012
oklch(37.8% 0.112 143.3)
-
Step 950
950
#0C2F0D
oklch(27.1% 0.071 143.7)
#40A841 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) | #AB9936 | 0.124 |
| Deuteranopia (no green cones) | #9E9049 | 0.124 |
| Tritanopia (no blue cones) | #2CA392 | 0.109 |
| Achromatopsia (no color) | #949494 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A841
#40A841
oklch(64.9% 0.171 143.4)
- #BF65CA
#BF65CA
oklch(64.8% 0.172 323.1)
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 #40A841, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.014
- Mid Green #50A747 ΔE 0.015
- Grass #5CAC2D ΔE 0.030
- Kelly Green #02AB2E ΔE 0.032
- Dark Pastel Green #56AE57 ΔE 0.034
- Shamrock #01B44C ΔE 0.035
- Leaf Green #5CA904 ΔE 0.035
- Fern #63A950 ΔE 0.036
Use #40A841 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.