#428F73
Closest named color: Dusty Teal (#4C9085). oklch(59.3% 0.088 167), rgb(66, 143, 115).
Aa
Black text reads best on this color (5.40:1).
About this color
#428F73 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.088 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.030 away. Black text reads best on it, at 5.40:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #428F73 |
| RGB | rgb(66, 143, 115) |
| HSL | hsl(158, 37%, 41%) |
| OKLCH | oklch(59.3% 0.088 167) |
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 #428F73 | 3.88:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #428F73 | 5.40:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #428F73 text on white | 3.88:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #428F73 text on black | 5.40:1 | AA | Lc -35.6 | 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 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED6
oklch(88.5% 0.022 167.4)
-
Step 300
300
#A9C9BB
oklch(80.8% 0.04 167.1)
-
Step 400
400
#7AAE98
oklch(70.8% 0.064 166.4)
-
Step 500
500
#55997F
oklch(63% 0.081 167.1)
-
Step 600
600 (this color)
#428F73
oklch(59.3% 0.088 167)
-
Step 700
700
#276F57
oklch(49% 0.082 167.6)
-
Step 800
800
#235B47
oklch(42.8% 0.068 166.8)
-
Step 900
900
#224B3C
oklch(37.8% 0.053 167.3)
-
Step 950
950
#152C23
oklch(27.1% 0.034 166.7)
#428F73 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) | #8C8672 | 0.089 |
| Deuteranopia (no green cones) | #807E75 | 0.085 |
| Tritanopia (no blue cones) | #238F87 | 0.033 |
| Achromatopsia (no color) | #818181 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428F73
#428F73
oklch(59.3% 0.088 167)
- #A56888
#A56888
oklch(59.3% 0.089 347.4)
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 #428F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.030
- Ocean Green #3D9973 ΔE 0.030
- Viridian #1E9167 ΔE 0.032
- Slate Green #658D6D ΔE 0.034
- Dark Sage #598556 ΔE 0.042
- Sea Green #2E8B57 ΔE 0.044
- Blue Green #0F9B8E ΔE 0.045
- Light Forest Green #4F9153 ΔE 0.046
Use #428F73 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.