#42A057
Closest named color: Muted Green (#5FA052). oklch(63.1% 0.14 148.4), rgb(66, 160, 87).
Aa
Black text reads best on this color (6.39:1).
About this color
#42A057 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.140 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muted Green (#5FA052), ΔE 0.025 away. Black text reads best on it, at 6.39:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Muted Green (#5FA052) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #42A057 |
| RGB | rgb(66, 160, 87) |
| HSL | hsl(133, 42%, 44%) |
| OKLCH | oklch(63.1% 0.14 148.4) |
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 #42A057 | 3.28:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #42A057 | 6.39:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #42A057 text on white | 3.28:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #42A057 text on black | 6.39:1 | AA | Lc -41.8 | Non-text elements, placeholder text |
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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C9E1CB
oklch(88.6% 0.039 147.6)
-
Step 300
300
#A3CDA8
oklch(80.8% 0.068 148.2)
-
Step 400
400
#6EB37A
oklch(70.6% 0.109 148.6)
-
Step 500
500 (this color)
#42A057
oklch(63.1% 0.14 148.4)
-
Step 600
600
#158A3B
oklch(55.5% 0.152 148.3)
-
Step 700
700
#00752E
oklch(49.1% 0.14 148.5)
-
Step 800
800
#0B5F27
oklch(42.6% 0.116 148.6)
-
Step 900
900
#164E24
oklch(37.6% 0.091 148.4)
-
Step 950
950
#0F2E16
oklch(27% 0.057 148.7)
#42A057 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) | #A19351 | 0.112 |
| Deuteranopia (no green cones) | #958B5C | 0.111 |
| Tritanopia (no blue cones) | #2B9D8E | 0.079 |
| Achromatopsia (no color) | #8E8E8E | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42A057
#42A057
oklch(63.1% 0.14 148.4)
- #B668B3
#B668B3
oklch(63.1% 0.139 328.5)
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 #42A057, closest first.
No curated palette has a color within ΔE 0.04 of #42A057.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Green #5FA052 ΔE 0.025
- Mid Green #50A747 ΔE 0.033
- Flat Green #699D4C ΔE 0.034
- Jade #1FA774 ΔE 0.036
- Seaweed Green #35AD6B ΔE 0.038
- Off Green #6BA353 ΔE 0.040
- Algae #54AC68 ΔE 0.042
- Jade Green #2BAF6A ΔE 0.042
Use #42A057 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.