#428F69
Closest named color: Viridian (#1E9167). oklch(59% 0.097 159.8), rgb(66, 143, 105).
Aa
Black text reads best on this color (5.36:1).
About this color
#428F69 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.097 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.022 away. Black text reads best on it, at 5.36:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #428F69 |
| RGB | rgb(66, 143, 105) |
| HSL | hsl(150, 37%, 41%) |
| OKLCH | oklch(59% 0.097 159.8) |
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 #428F69 | 3.91:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #428F69 | 5.36:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #428F69 text on white | 3.91:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #428F69 text on black | 5.36:1 | AA | Lc -35.3 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CCDED4
oklch(88.4% 0.024 161.7)
-
Step 300
300
#A9CAB7
oklch(80.9% 0.044 160)
-
Step 400
400
#7AAE92
oklch(70.6% 0.069 160.4)
-
Step 500
500
#559A77
oklch(63.1% 0.089 160.3)
-
Step 600
600 (this color)
#428F69
oklch(59% 0.097 159.8)
-
Step 700
700
#28704E
oklch(49% 0.091 159.6)
-
Step 800
800
#235B40
oklch(42.6% 0.075 159.7)
-
Step 900
900
#234B37
oklch(37.7% 0.057 160.1)
-
Step 950
950
#152C20
oklch(27% 0.037 159.8)
#428F69 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) | #8E8567 | 0.093 |
| Deuteranopia (no green cones) | #827D6B | 0.089 |
| Tritanopia (no blue cones) | #298E85 | 0.044 |
| Achromatopsia (no color) | #818181 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428F69
#428F69
oklch(59% 0.097 159.8)
- #A46690
#A46690
oklch(59.1% 0.097 339.8)
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 #428F69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.022
- Ocean Green #3D9973 ΔE 0.029
- Sea Green #2E8B57 ΔE 0.032
- Light Forest Green #4F9153 ΔE 0.033
- Dark Sage #598556 ΔE 0.035
- Slate Green #658D6D ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.044
- Fern Green #548D44 ΔE 0.046
Use #428F69 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.