#427B4F
Closest named color: Dark Sage (#598556). oklch(53.1% 0.092 149.7), rgb(66, 123, 79).
Aa
White text reads best on this color (5.02:1).
About this color
#427B4F is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.092 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.042 away. White text reads best on it, at 5.02:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Values
| HEX | #427B4F |
| RGB | rgb(66, 123, 79) |
| HSL | hsl(134, 30%, 37%) |
| OKLCH | oklch(53.1% 0.092 149.7) |
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 #427B4F | 5.02:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #427B4F | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #427B4F text on white | 5.02:1 | AA | Lc 74.6 | Content text, not long reading |
| #427B4F text on black | 4.17:1 | AA large text | Lc -27.1 | Dividers and decoration only |
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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#CFDED1
oklch(88.6% 0.024 149.3)
-
Step 300
300
#AFC9B3
oklch(81% 0.042 149.7)
-
Step 400
400
#84AD8B
oklch(70.8% 0.066 149.6)
-
Step 500
500
#64986E
oklch(63.1% 0.084 149.5)
-
Step 600
600 (this color)
#427B4F
oklch(53.1% 0.092 149.7)
-
Step 700
700
#3A6E46
oklch(49.1% 0.085 149.8)
-
Step 800
800
#315A3A
oklch(42.8% 0.07 149.7)
-
Step 900
900
#2B4A32
oklch(37.7% 0.055 150.3)
-
Step 950
950
#1A2B1D
oklch(26.9% 0.034 149.2)
#427B4F 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) | #7C724C | 0.077 |
| Deuteranopia (no green cones) | #736D52 | 0.074 |
| Tritanopia (no blue cones) | #387970 | 0.052 |
| Achromatopsia (no color) | #6F6F6F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427B4F
#427B4F
oklch(53.1% 0.092 149.7)
- #8A5886
#8A5886
oklch(53.2% 0.092 329.6)
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 #427B4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.042
- Military Green #667C3E ΔE 0.045
- Jungle Green #048243 ΔE 0.046
- Muddy Green #657432 ΔE 0.047
- Sea Green #2E8B57 ΔE 0.047
- Dark Moss Green #606C38 ΔE 0.051
- Dark Olive Green #556B2F ΔE 0.052
- Swamp #698339 ΔE 0.060
Use #427B4F 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.