#256F40
Closest named color: Dark Olive Green (#556B2F). oklch(48.3% 0.105 152.2), rgb(37, 111, 64).
Aa
White text reads best on this color (6.12:1).
About this color
#256F40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.105 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.048 away. White text reads best on it, at 6.12:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #256F40 |
| RGB | rgb(37, 111, 64) |
| HSL | hsl(142, 50%, 29%) |
| OKLCH | oklch(48.3% 0.105 152.2) |
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 #256F40 | 6.12:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #256F40 | 3.42:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #256F40 text on white | 6.12:1 | AA | Lc 80.3 | Fine for body text |
| #256F40 text on black | 3.42:1 | AA large text | Lc -21.5 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CCDFD0
oklch(88.5% 0.029 151.9)
-
Step 300
300
#A9CBB1
oklch(81% 0.051 152.2)
-
Step 400
400
#7AB088
oklch(70.8% 0.081 152)
-
Step 500
500
#559B6A
oklch(63% 0.103 152.2)
-
Step 600
600
#368652
oklch(55.7% 0.113 152.4)
-
Step 700
700 (this color)
#256F40
oklch(48.3% 0.105 152.2)
-
Step 800
800
#235C37
oklch(42.6% 0.086 152.5)
-
Step 900
900
#224C2F
oklch(37.7% 0.069 151.9)
-
Step 950
950
#152C1C
oklch(26.9% 0.042 152.5)
#256F40 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) | #6F663D | 0.089 |
| Deuteranopia (no green cones) | #665F43 | 0.089 |
| Tritanopia (no blue cones) | #066D63 | 0.055 |
| Achromatopsia (no color) | #626262 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256F40
#256F40
oklch(48.3% 0.105 152.2)
- #804678
#804678
oklch(48.2% 0.105 332.3)
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 #256F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.048
- Camo Green #526525 ΔE 0.050
- Pine #2B5D34 ΔE 0.055
- Spruce #0A5F38 ΔE 0.055
- Camouflage Green #4B6113 ΔE 0.056
- Jungle Green #048243 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.060
- Army Green #4B5D16 ΔE 0.062
Use #256F40 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.