#42571B
Closest named color: Army Green (#4B5D16). oklch(42.6% 0.089 126.4), rgb(66, 87, 27).
Aa
White text reads best on this color (8.04:1).
About this color
#42571B is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.089 and its hue 126°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Army Green (#4B5D16), ΔE 0.025 away. White text reads best on it, at 8.04:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Army Green (#4B5D16) |
| Black text | 2.61:1 |
| White text | 8.04:1 |
Values
| HEX | #42571B |
| RGB | rgb(66, 87, 27) |
| HSL | hsl(81, 53%, 22%) |
| OKLCH | oklch(42.6% 0.089 126.4) |
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 #42571B | 8.04:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #42571B | 2.61:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #42571B text on white | 8.04:1 | AAA | Lc 87.8 | Fine for body text |
| #42571B text on black | 2.61:1 | Fails | Lc -14.4 | Not readable |
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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D4DDC9
oklch(88.5% 0.029 126.8)
-
Step 300
300
#B8C7A3
oklch(80.9% 0.052 126)
-
Step 400
400
#93AA71
oklch(70.6% 0.083 126.3)
-
Step 500
500
#79954B
oklch(63.1% 0.106 126.3)
-
Step 600
600
#627F2C
oklch(55.6% 0.115 126.3)
-
Step 700
700
#516B1E
oklch(49.1% 0.107 126.3)
-
Step 800
800 (this color)
#42571B
oklch(42.6% 0.089 126.4)
-
Step 900
900
#38481D
oklch(37.7% 0.069 126.4)
-
Step 950
950
#212A12
oklch(26.9% 0.043 126)
#42571B 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) | #5C5113 | 0.042 |
| Deuteranopia (no green cones) | #59501F | 0.042 |
| Tritanopia (no blue cones) | #45534B | 0.072 |
| Achromatopsia (no color) | #505050 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42571B
#42571B
oklch(42.6% 0.089 126.4)
- #5B4075
#5B4075
oklch(42.5% 0.09 306.4)
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 #42571B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Army Green #4B5D16 ΔE 0.025
- Navy Green #35530A ΔE 0.027
- Pine #2B5D34 ΔE 0.033
- Green Brown #544E03 ΔE 0.035
- Camouflage Green #4B6113 ΔE 0.037
- Spruce #0A5F38 ΔE 0.050
- Camo Green #526525 ΔE 0.051
- Olive Brown #645403 ΔE 0.052
Use #42571B 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.