#428563
Closest named color: Dark Sage (#598556). oklch(56.3% 0.087 159.6), rgb(66, 133, 99).
Aa
Black text reads best on this color (4.76:1).
About this color
#428563 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.087 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.027 away. Black text reads best on it, at 4.76:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.76:1 |
| White text | 4.40:1 |
Values
| HEX | #428563 |
| RGB | rgb(66, 133, 99) |
| HSL | hsl(150, 34%, 39%) |
| OKLCH | oklch(56.3% 0.087 159.6) |
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 #428563 | 4.40:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #428563 | 4.76:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #428563 text on white | 4.40:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #428563 text on black | 4.76:1 | AA | Lc -31.3 | 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
#F3F7F4
oklch(97.2% 0.006 153.8)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDED4
oklch(88.6% 0.022 158.5)
-
Step 300
300
#ACC9B8
oklch(81% 0.039 159.7)
-
Step 400
400
#7FAD93
oklch(70.7% 0.062 159.5)
-
Step 500
500
#5C9978
oklch(63.2% 0.081 159.2)
-
Step 600
600 (this color)
#428563
oklch(56.3% 0.087 159.6)
-
Step 700
700
#316F50
oklch(49.1% 0.082 159.4)
-
Step 800
800
#2A5A42
oklch(42.6% 0.067 159.9)
-
Step 900
900
#274A38
oklch(37.7% 0.052 160.1)
-
Step 950
950
#172B21
oklch(26.8% 0.032 161.4)
#428563 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) | #847C61 | 0.083 |
| Deuteranopia (no green cones) | #7A7565 | 0.081 |
| Tritanopia (no blue cones) | #2F847C | 0.040 |
| Achromatopsia (no color) | #787878 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428563
#428563
oklch(56.3% 0.087 159.6)
- #976086
#976086
oklch(56.2% 0.088 339)
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 #428563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.027
- Sea Green #2E8B57 ΔE 0.033
- Viridian #1E9167 ΔE 0.038
- Slate Green #658D6D ΔE 0.049
- Light Forest Green #4F9153 ΔE 0.050
- Military Green #667C3E ΔE 0.054
- Dusty Teal #4C9085 ΔE 0.055
- Fern Green #548D44 ΔE 0.055
Use #428563 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.