#42A080
Closest named color: Ocean Green (#3D9973). oklch(64% 0.102 167.7), rgb(66, 160, 128).
Aa
Black text reads best on this color (6.57:1).
About this color
#42A080 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.102 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.025 away. Black text reads best on it, at 6.57:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #42A080 |
| RGB | rgb(66, 160, 128) |
| HSL | hsl(160, 42%, 44%) |
| OKLCH | oklch(64% 0.102 167.7) |
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 #42A080 | 3.19:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #42A080 | 6.57:1 | AA | Lc 45.2 | Large or bold text, headings |
| #42A080 text on white | 3.19:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #42A080 text on black | 6.57:1 | AA | Lc -42.8 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A2CBBA
oklch(80.8% 0.05 167.9)
-
Step 400
400
#6DB197
oklch(70.7% 0.08 167.8)
-
Step 500
500 (this color)
#42A080
oklch(64% 0.102 167.7)
-
Step 600
600
#0A8766
oklch(55.5% 0.11 167.8)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800
#045D46
oklch(42.6% 0.084 168.4)
-
Step 900
900
#134D3B
oklch(37.8% 0.067 168.1)
-
Step 950
950
#0E2D22
oklch(27% 0.042 167)
#42A080 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) | #9C967E | 0.102 |
| Deuteranopia (no green cones) | #8F8C82 | 0.099 |
| Tritanopia (no blue cones) | #09A197 | 0.037 |
| Achromatopsia (no color) | #909090 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42A080
#42A080
oklch(64% 0.102 167.7)
- #BA7297
#BA7297
oklch(64.1% 0.102 348.2)
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 #42A080, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.025
- Persian Green #2A9D8F ΔE 0.029
- Grey Teal #5E9B8A ΔE 0.035
- Jade #1FA774 ΔE 0.036
- Blue Green #0F9B8E ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.037
- Sea #3C9992 ΔE 0.039
- Tea #65AB7C ΔE 0.048
Use #42A080 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.