#428C7D
Closest named color: Dusty Teal (#4C9085). oklch(58.8% 0.078 178.4), rgb(66, 140, 125).
Aa
Black text reads best on this color (5.27:1).
About this color
#428C7D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.078 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.019 away. Black text reads best on it, at 5.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.27:1 |
| White text | 3.97:1 |
Values
| HEX | #428C7D |
| RGB | rgb(66, 140, 125) |
| HSL | hsl(168, 36%, 40%) |
| OKLCH | oklch(58.8% 0.078 178.4) |
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 #428C7D | 3.97:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #428C7D | 5.27:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #428C7D text on white | 3.97:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #428C7D text on black | 5.27:1 | AA | Lc -34.7 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C8C1
oklch(80.8% 0.035 180.2)
-
Step 400
400
#7AACA1
oklch(70.6% 0.056 179.4)
-
Step 500
500
#56988A
oklch(63.1% 0.071 178.6)
-
Step 600
600 (this color)
#428C7D
oklch(58.8% 0.078 178.4)
-
Step 700
700
#296E61
oklch(49.1% 0.072 178.6)
-
Step 800
800
#245A4F
oklch(42.8% 0.06 177.8)
-
Step 900
900
#234A42
oklch(37.8% 0.047 178.6)
-
Step 950
950
#152B26
oklch(26.9% 0.03 177.6)
#428C7D 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) | #87857C | 0.082 |
| Deuteranopia (no green cones) | #7B7C7E | 0.078 |
| Tritanopia (no blue cones) | #1C8E87 | 0.023 |
| Achromatopsia (no color) | #7F7F7F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428C7D
#428C7D
oklch(58.8% 0.078 178.4)
- #A3697C
#A3697C
oklch(58.8% 0.078 358.6)
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 #428C7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.019
- Dark Cyan #008B8B ΔE 0.034
- Teal Green #0A9396 ΔE 0.040
- Slate Green #658D6D ΔE 0.040
- Sea #3C9992 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.045
- Ocean Green #3D9973 ΔE 0.047
- Viridian #1E9167 ΔE 0.048
Use #428C7D 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.