#40B153
Closest named color: Medium Green (#39AD48). oklch(67.5% 0.168 146.4), rgb(64, 177, 83).
Aa
Black text reads best on this color (7.63:1).
About this color
#40B153 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.168 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 0.016 away. Black text reads best on it, at 7.63:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.63:1 |
| White text | 2.75:1 |
Values
| HEX | #40B153 |
| RGB | rgb(64, 177, 83) |
| HSL | hsl(130, 47%, 47%) |
| OKLCH | oklch(67.5% 0.168 146.4) |
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 #40B153 | 2.75:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #40B153 | 7.63:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #40B153 text on white | 2.75:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #40B153 text on black | 7.63:1 | AAA | Lc -49.1 | 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
#DDF0DE
oklch(93.6% 0.031 146.8)
-
Step 200
200
#C1E4C3
oklch(88.5% 0.058 146.6)
-
Step 300
300
#93D398
oklch(80.8% 0.105 146.4)
-
Step 400
400 (this color)
#40B153
oklch(67.5% 0.168 146.4)
-
Step 500
500
#00A638
oklch(63.1% 0.19 146.5)
-
Step 600
600
#008C2E
oklch(55.7% 0.168 146.5)
-
Step 700
700
#007525
oklch(49% 0.148 146.5)
-
Step 800
800
#00601D
oklch(42.6% 0.128 146.5)
-
Step 900
900
#005017
oklch(37.6% 0.113 146.6)
-
Step 950
950
#00300A
oklch(26.9% 0.081 146.4)
#40B153 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) | #B3A24B | 0.129 |
| Deuteranopia (no green cones) | #A5985A | 0.129 |
| Tritanopia (no blue cones) | #21AD9C | 0.100 |
| Achromatopsia (no color) | #9C9C9C | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B153
#40B153
oklch(67.5% 0.168 146.4)
- #CA6DCC
#CA6DCC
oklch(67.4% 0.167 326.5)
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 #40B153, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.016
- Dark Pastel Green #56AE57 ΔE 0.019
- Cool Green #33B864 ΔE 0.022
- Shamrock #01B44C ΔE 0.025
- Mid Green #50A747 ΔE 0.028
- Jade Green #2BAF6A ΔE 0.030
- Grass #5CAC2D ΔE 0.032
- Fern #63A950 ΔE 0.033
Use #40B153 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.