#428C74
Closest named color: Dusty Teal (#4C9085). oklch(58.6% 0.083 169.7), rgb(66, 140, 116).
Aa
Black text reads best on this color (5.23:1).
About this color
#428C74 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.083 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.028 away. Black text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #428C74 |
| RGB | rgb(66, 140, 116) |
| HSL | hsl(161, 36%, 40%) |
| OKLCH | oklch(58.6% 0.083 169.7) |
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 #428C74 | 4.01:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #428C74 | 5.23:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #428C74 text on white | 4.01:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #428C74 text on black | 5.23:1 | AA | Lc -34.4 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED7
oklch(88.5% 0.021 170.6)
-
Step 300
300
#AAC9BD
oklch(81% 0.037 170)
-
Step 400
400
#7BAD9B
oklch(70.7% 0.059 170.2)
-
Step 500
500
#569982
oklch(63.2% 0.078 169.6)
-
Step 600
600 (this color)
#428C74
oklch(58.6% 0.083 169.7)
-
Step 700
700
#2A6F5A
oklch(49.2% 0.078 169.9)
-
Step 800
800
#255A49
oklch(42.6% 0.064 169.5)
-
Step 900
900
#234A3D
oklch(37.6% 0.05 169.6)
-
Step 950
950
#162C24
oklch(27.2% 0.032 168.6)
#428C74 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) | #898473 | 0.086 |
| Deuteranopia (no green cones) | #7D7C76 | 0.081 |
| Tritanopia (no blue cones) | #238D85 | 0.029 |
| Achromatopsia (no color) | #7F7F7F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428C74
#428C74
oklch(58.6% 0.083 169.7)
- #A16783
#A16783
oklch(58.5% 0.083 349.6)
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 #428C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.028
- Slate Green #658D6D ΔE 0.036
- Viridian #1E9167 ΔE 0.036
- Ocean Green #3D9973 ΔE 0.040
- Dark Sage #598556 ΔE 0.042
- Dark Cyan #008B8B ΔE 0.043
- Sea Green #2E8B57 ΔE 0.047
- Blue Green #0F9B8E ΔE 0.049
Use #428C74 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.