#40B052
Closest named color: Medium Green (#39AD48). oklch(67.2% 0.167 146.3), rgb(64, 176, 82).
Aa
Black text reads best on this color (7.54:1).
About this color
#40B052 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.167 and its hue 146°. 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 7.54:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.54:1 |
| White text | 2.78:1 |
Values
| HEX | #40B052 |
| RGB | rgb(64, 176, 82) |
| HSL | hsl(130, 47%, 47%) |
| OKLCH | oklch(67.2% 0.167 146.3) |
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 #40B052 | 2.78:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #40B052 | 7.54:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #40B052 text on white | 2.78:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #40B052 text on black | 7.54:1 | AAA | Lc -48.6 | 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
#DEF0DE
oklch(93.7% 0.031 145.3)
-
Step 200
200
#C1E4C3
oklch(88.5% 0.058 146.6)
-
Step 300
300
#94D398
oklch(80.9% 0.104 146.1)
-
Step 400
400 (this color)
#40B052
oklch(67.2% 0.167 146.3)
-
Step 500
500
#00A637
oklch(63.1% 0.191 146.3)
-
Step 600
600
#008C2D
oklch(55.7% 0.169 146.3)
-
Step 700
700
#007524
oklch(49% 0.148 146.3)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#00300A
oklch(26.9% 0.081 146.4)
#40B052 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) | #B2A14A | 0.129 |
| Deuteranopia (no green cones) | #A49759 | 0.128 |
| Tritanopia (no blue cones) | #22AC9B | 0.100 |
| Achromatopsia (no color) | #9B9B9B | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B052
#40B052
oklch(67.2% 0.167 146.3)
- #C96CCC
#C96CCC
oklch(67.1% 0.168 326.1)
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 #40B052, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.014
- Dark Pastel Green #56AE57 ΔE 0.019
- Cool Green #33B864 ΔE 0.025
- Shamrock #01B44C ΔE 0.025
- Mid Green #50A747 ΔE 0.025
- Jade Green #2BAF6A ΔE 0.029
- Fern #63A950 ΔE 0.031
- Grass #5CAC2D ΔE 0.031
Use #40B052 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.