#427440
Closest named color: Dark Olive Green (#556B2F). oklch(51% 0.097 143.2), rgb(66, 116, 64).
Aa
White text reads best on this color (5.52:1).
About this color
#427440 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.097 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.032 away. White text reads best on it, at 5.52:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #427440 |
| RGB | rgb(66, 116, 64) |
| HSL | hsl(118, 29%, 35%) |
| OKLCH | oklch(51% 0.097 143.2) |
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 #427440 | 5.52:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #427440 | 3.80:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #427440 text on white | 5.52:1 | AA | Lc 77.4 | Fine for body text |
| #427440 text on black | 3.80:1 | AA large text | Lc -24.3 | 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 700.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E5ECE4
oklch(93.6% 0.013 141.8)
-
Step 200
200
#D0DECE
oklch(88.6% 0.026 141.8)
-
Step 300
300
#B0C9AE
oklch(81% 0.046 143.1)
-
Step 400
400
#85AD83
oklch(70.7% 0.074 143.6)
-
Step 500
500
#669863
oklch(63% 0.095 143.1)
-
Step 600
600
#4C834A
oklch(55.7% 0.104 143.3)
-
Step 700
700 (this color)
#427440
oklch(51% 0.097 143.2)
-
Step 800
800
#335A31
oklch(42.7% 0.079 143)
-
Step 900
900
#2D4A2B
oklch(37.7% 0.062 142.8)
-
Step 950
950
#1B2B1A
oklch(26.9% 0.038 143.1)
#427440 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) | #766C3C | 0.071 |
| Deuteranopia (no green cones) | #6F6743 | 0.071 |
| Tritanopia (no blue cones) | #3C7167 | 0.061 |
| Achromatopsia (no color) | #696969 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427440
#427440
oklch(51% 0.097 143.2)
- #805286
#805286
oklch(50.9% 0.096 322.7)
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 #427440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.032
- Dark Moss Green #606C38 ΔE 0.040
- Muddy Green #657432 ΔE 0.044
- Camo Green #526525 ΔE 0.046
- Jungle Green #048243 ΔE 0.050
- Military Green #667C3E ΔE 0.053
- Mud Green #606602 ΔE 0.058
- Tree Green #2A7E19 ΔE 0.061
Use #427440 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.