#40B059
Closest named color: Dark Pastel Green (#56AE57). oklch(67.3% 0.161 147.8), rgb(64, 176, 89).
Aa
Black text reads best on this color (7.57:1).
About this color
#40B059 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.161 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Pastel Green (#56AE57), ΔE 0.016 away. Black text reads best on it, at 7.57:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #40B059 |
| RGB | rgb(64, 176, 89) |
| HSL | hsl(133, 47%, 47%) |
| OKLCH | oklch(67.3% 0.161 147.8) |
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 #40B059 | 2.77:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #40B059 | 7.57:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #40B059 text on white | 2.77:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #40B059 text on black | 7.57:1 | AAA | Lc -48.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DEF0DF
oklch(93.7% 0.03 146.9)
-
Step 200
200
#C1E4C5
oklch(88.5% 0.056 148.3)
-
Step 300
300
#94D39C
oklch(81% 0.1 147.8)
-
Step 400
400 (this color)
#40B059
oklch(67.3% 0.161 147.8)
-
Step 500
500
#00A641
oklch(63.2% 0.184 147.9)
-
Step 600
600
#008B35
oklch(55.5% 0.161 147.8)
-
Step 700
700
#00752B
oklch(49% 0.143 147.8)
-
Step 800
800
#006022
oklch(42.6% 0.124 147.8)
-
Step 900
900
#00501B
oklch(37.6% 0.109 147.8)
-
Step 950
950
#00300D
oklch(27% 0.078 147.8)
#40B059 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) | #B2A152 | 0.129 |
| Deuteranopia (no green cones) | #A4975F | 0.128 |
| Tritanopia (no blue cones) | #1EAC9C | 0.094 |
| Achromatopsia (no color) | #9B9B9B | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B059
#40B059
oklch(67.3% 0.161 147.8)
- #C96EC8
#C96EC8
oklch(67.2% 0.161 327.6)
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 #40B059, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.016
- Medium Green #39AD48 ΔE 0.020
- Cool Green #33B864 ΔE 0.022
- Jade Green #2BAF6A ΔE 0.022
- Seaweed Green #35AD6B ΔE 0.026
- Mid Green #50A747 ΔE 0.027
- Medium Sea Green #3CB371 ΔE 0.028
- Fern #63A950 ΔE 0.030
Use #40B059 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.