#42AA4E
Closest named color: Mid Green (#50A747). oklch(65.6% 0.162 145.5), rgb(66, 170, 78).
Aa
Black text reads best on this color (7.09:1).
About this color
#42AA4E is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.162 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.012 away. Black text reads best on it, at 7.09:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 7.09:1 |
| White text | 2.96:1 |
Values
| HEX | #42AA4E |
| RGB | rgb(66, 170, 78) |
| HSL | hsl(127, 44%, 46%) |
| OKLCH | oklch(65.6% 0.162 145.5) |
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 #42AA4E | 2.96:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #42AA4E | 7.09:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #42AA4E text on white | 2.96:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #42AA4E text on black | 7.09:1 | AAA | Lc -46.0 | 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 500.
-
Step 50
50
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C8E1C8
oklch(88.4% 0.043 145.2)
-
Step 300
300
#A1CFA2
oklch(81% 0.079 145.3)
-
Step 400
400
#6AB56E
oklch(70.6% 0.126 145.2)
-
Step 500
500 (this color)
#42AA4E
oklch(65.6% 0.162 145.5)
-
Step 600
600
#008C27
oklch(55.7% 0.173 145.4)
-
Step 700
700
#007620
oklch(49.2% 0.152 145.5)
-
Step 800
800
#006118
oklch(42.8% 0.133 145.4)
-
Step 900
900
#0F4F1A
oklch(37.6% 0.105 145.6)
-
Step 950
950
#0C2F10
oklch(27.1% 0.068 145.4)
#42AA4E 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) | #AD9B46 | 0.125 |
| Deuteranopia (no green cones) | #9F9255 | 0.123 |
| Tritanopia (no blue cones) | #2BA695 | 0.098 |
| Achromatopsia (no color) | #969696 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42AA4E
#42AA4E
oklch(65.6% 0.162 145.5)
- #C26AC6
#C26AC6
oklch(65.7% 0.162 325.6)
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 #42AA4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.012
- Medium Green #39AD48 ΔE 0.013
- Dark Pastel Green #56AE57 ΔE 0.023
- Fern #63A950 ΔE 0.028
- Jade Green #2BAF6A ΔE 0.031
- Seaweed Green #35AD6B ΔE 0.032
- Grass #5CAC2D ΔE 0.033
- Shamrock #01B44C ΔE 0.034
Use #42AA4E 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.