#42AE79
Closest named color: Dark Seafoam Green (#3EAF76). oklch(67.5% 0.127 158.6), rgb(66, 174, 121).
Aa
Black text reads best on this color (7.56:1).
About this color
#42AE79 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.127 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.006 away. Black text reads best on it, at 7.56:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.56:1 |
| White text | 2.77:1 |
Values
| HEX | #42AE79 |
| RGB | rgb(66, 174, 121) |
| HSL | hsl(151, 45%, 47%) |
| OKLCH | oklch(67.5% 0.127 158.6) |
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 #42AE79 | 2.77:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #42AE79 | 7.56:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #42AE79 text on white | 2.77:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #42AE79 text on black | 7.56:1 | 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
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DEEFE4
oklch(93.6% 0.023 157.6)
-
Step 200
200
#C2E3CE
oklch(88.6% 0.045 157.4)
-
Step 300
300
#94D1AE
oklch(80.9% 0.08 158.8)
-
Step 400
400 (this color)
#42AE79
oklch(67.5% 0.127 158.6)
-
Step 500
500
#00A367
oklch(63% 0.146 158.5)
-
Step 600
600
#008956
oklch(55.5% 0.129 158.6)
-
Step 700
700
#007348
oklch(49% 0.113 158.9)
-
Step 800
800
#005F3A
oklch(42.8% 0.099 158.5)
-
Step 900
900
#004F30
oklch(37.7% 0.087 158.9)
-
Step 950
950
#002F1B
oklch(26.9% 0.062 159.3)
#42AE79 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) | #ACA176 | 0.118 |
| Deuteranopia (no green cones) | #9E977C | 0.115 |
| Tritanopia (no blue cones) | #06ADA0 | 0.057 |
| Achromatopsia (no color) | #9B9B9B | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42AE79
#42AE79
oklch(67.5% 0.127 158.6)
- #C976B1
#C976B1
oklch(67.5% 0.127 338.6)
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 #42AE79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.006
- Bluey Green #2BB179 ΔE 0.014
- Medium Sea Green #3CB371 ΔE 0.021
- Seaweed Green #35AD6B ΔE 0.021
- Algae #54AC68 ΔE 0.022
- Dark Seafoam #1FB57A ΔE 0.023
- Jade Green #2BAF6A ΔE 0.026
- Green Teal #0CB577 ΔE 0.027
Use #42AE79 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.