#428D77
Closest named color: Dusty Teal (#4C9085). oklch(58.9% 0.083 171.7), rgb(66, 141, 119).
Aa
Black text reads best on this color (5.30:1).
About this color
#428D77 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.083 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.024 away. Black text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #428D77 |
| RGB | rgb(66, 141, 119) |
| HSL | hsl(162, 36%, 41%) |
| OKLCH | oklch(58.9% 0.083 171.7) |
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 #428D77 | 3.95:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #428D77 | 5.30:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #428D77 text on white | 3.95:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #428D77 text on black | 5.30:1 | AA | Lc -34.9 | 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
#A9C9BE
oklch(80.9% 0.038 172.5)
-
Step 400
400
#7AAD9C
oklch(70.7% 0.06 171.8)
-
Step 500
500
#569984
oklch(63.2% 0.076 171.5)
-
Step 600
600 (this color)
#428D77
oklch(58.9% 0.083 171.7)
-
Step 700
700
#296F5B
oklch(49.2% 0.077 171.1)
-
Step 800
800
#245A4B
oklch(42.6% 0.063 172.3)
-
Step 900
900
#234A3E
oklch(37.6% 0.049 171.3)
-
Step 950
950
#152B25
oklch(26.9% 0.03 174.4)
#428D77 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) | #898576 | 0.085 |
| Deuteranopia (no green cones) | #7E7C79 | 0.083 |
| Tritanopia (no blue cones) | #218E87 | 0.028 |
| Achromatopsia (no color) | #808080 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428D77
#428D77
oklch(58.9% 0.083 171.7)
- #A36882
#A36882
oklch(58.9% 0.083 352)
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 #428D77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.024
- Slate Green #658D6D ΔE 0.036
- Viridian #1E9167 ΔE 0.039
- Ocean Green #3D9973 ΔE 0.039
- Dark Cyan #008B8B ΔE 0.041
- Sea #3C9992 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.045
- Dark Sage #598556 ΔE 0.045
Use #428D77 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.