#42B852
Closest named color: Cool Green (#33B864). oklch(69.4% 0.177 145.7), rgb(66, 184, 82).
Aa
Black text reads best on this color (8.20:1).
About this color
#42B852 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.177 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.020 away. Black text reads best on it, at 8.20:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.20:1 |
| White text | 2.55:1 |
Values
| HEX | #42B852 |
| RGB | rgb(66, 184, 82) |
| HSL | hsl(128, 47%, 49%) |
| OKLCH | oklch(69.4% 0.177 145.7) |
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 #42B852 | 2.55:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #42B852 | 8.20:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #42B852 text on white | 2.55:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #42B852 text on black | 8.20:1 | AAA | Lc -52.3 | 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
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C0E5C1
oklch(88.6% 0.062 145.7)
-
Step 300
300
#92D495
oklch(80.9% 0.11 145.6)
-
Step 400
400 (this color)
#42B852
oklch(69.4% 0.177 145.7)
-
Step 500
500
#00A632
oklch(63.1% 0.195 145.7)
-
Step 600
600
#008C29
oklch(55.7% 0.172 145.7)
-
Step 700
700
#007621
oklch(49.2% 0.152 145.7)
-
Step 800
800
#006119
oklch(42.8% 0.133 145.6)
-
Step 900
900
#005114
oklch(37.8% 0.117 145.7)
-
Step 950
950
#003008
oklch(26.9% 0.083 145.6)
#42B852 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) | #BBA848 | 0.135 |
| Deuteranopia (no green cones) | #AC9E5A | 0.134 |
| Tritanopia (no blue cones) | #23B4A1 | 0.106 |
| Achromatopsia (no color) | #A2A2A2 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42B852
#42B852
oklch(69.4% 0.177 145.7)
- #D270D7
#D270D7
oklch(69.3% 0.177 325.5)
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 #42B852, closest first.
No curated palette has a color within ΔE 0.04 of #42B852.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.020
- Leafy Green #51B73B ΔE 0.020
- Shamrock #01B44C ΔE 0.028
- Shamrock Green #02C14D ΔE 0.032
- Dark Pastel Green #56AE57 ΔE 0.033
- Medium Green #39AD48 ΔE 0.033
- Dark Mint Green #20C073 ΔE 0.036
- Algae Green #21C36F ΔE 0.036
Use #42B852 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.