#256603
Closest named color: Dark Green (#006400). oklch(45% 0.139 138.5), rgb(37, 102, 3).
Aa
White text reads best on this color (7.04:1).
About this color
#256603 is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.139 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green (#006400), ΔE 0.020 away. White text reads best on it, at 7.04:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Green (#006400) |
| Black text | 2.98:1 |
| White text | 7.04:1 |
Values
| HEX | #256603 |
| RGB | rgb(37, 102, 3) |
| HSL | hsl(99, 94%, 21%) |
| OKLCH | oklch(45% 0.139 138.5) |
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 #256603 | 7.04:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #256603 | 2.98:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #256603 text on white | 7.04:1 | AAA | Lc 84.0 | Fine for body text |
| #256603 text on black | 2.98:1 | Fails | Lc -18.0 | 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 800.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CBE1C4
oklch(88.6% 0.046 138.1)
-
Step 300
300
#A7CE9B
oklch(81% 0.081 138.4)
-
Step 400
400
#76B462
oklch(70.8% 0.13 138.4)
-
Step 500
500
#4FA031
oklch(63.1% 0.166 138.5)
-
Step 600
600
#338900
oklch(55.5% 0.173 138.5)
-
Step 700
700
#2A7300
oklch(49% 0.153 138.4)
-
Step 800
800 (this color)
#256603
oklch(45% 0.139 138.5)
-
Step 900
900
#1F4E0B
oklch(37.7% 0.108 138.5)
-
Step 950
950
#132E0A
oklch(27% 0.068 138.8)
#256603 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) | #695C00 | 0.090 |
| Deuteranopia (no green cones) | #625713 | 0.090 |
| Tritanopia (no blue cones) | #1E6256 | 0.097 |
| Achromatopsia (no color) | #595959 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256603
#256603
oklch(45% 0.139 138.5)
- #753686
#753686
oklch(45.1% 0.14 318.6)
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 #256603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green #006400 ΔE 0.020
- Camouflage Green #4B6113 ΔE 0.046
- Deep Green #02590F ΔE 0.050
- Army Green #4B5D16 ΔE 0.053
- Spruce #0A5F38 ΔE 0.058
- Pine #2B5D34 ΔE 0.058
- Forest #0B5509 ΔE 0.061
- Camo Green #526525 ΔE 0.061
Use #256603 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.