#428565
Closest named color: Dark Sage (#598556). oklch(56.3% 0.086 161.1), rgb(66, 133, 101).
Aa
Black text reads best on this color (4.77:1).
About this color
#428565 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.086 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.028 away. Black text reads best on it, at 4.77:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #428565 |
| RGB | rgb(66, 133, 101) |
| HSL | hsl(151, 34%, 39%) |
| OKLCH | oklch(56.3% 0.086 161.1) |
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 #428565 | 4.39:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #428565 | 4.77:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #428565 text on white | 4.39:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #428565 text on black | 4.77:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDED5
oklch(88.6% 0.021 161.4)
-
Step 300
300
#ACC9B9
oklch(81% 0.038 161.3)
-
Step 400
400
#7EAD94
oklch(70.7% 0.062 161)
-
Step 500
500
#5C987A
oklch(63% 0.078 161.3)
-
Step 600
600 (this color)
#428565
oklch(56.3% 0.086 161.1)
-
Step 700
700
#316F52
oklch(49.2% 0.08 161)
-
Step 800
800
#2A5A43
oklch(42.7% 0.066 161)
-
Step 900
900
#274A39
oklch(37.7% 0.051 161.5)
-
Step 950
950
#172B21
oklch(26.8% 0.032 161.4)
#428565 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) | #837D63 | 0.081 |
| Deuteranopia (no green cones) | #797567 | 0.080 |
| Tritanopia (no blue cones) | #2E857C | 0.036 |
| Achromatopsia (no color) | #787878 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428565
#428565
oklch(56.3% 0.086 161.1)
- #986184
#986184
oklch(56.4% 0.086 341.6)
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 #428565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.028
- Sea Green #2E8B57 ΔE 0.035
- Viridian #1E9167 ΔE 0.039
- Slate Green #658D6D ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.052
- Dusty Teal #4C9085 ΔE 0.053
- Military Green #667C3E ΔE 0.055
- Teal #008080 ΔE 0.056
Use #428565 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.