#28571B
Closest named color: Navy Green (#35530A). oklch(40.9% 0.104 139.5), rgb(40, 87, 27).
Aa
White text reads best on this color (8.50:1).
About this color
#28571B is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.104 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.017 away. White text reads best on it, at 8.50:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.46:1 |
| White text | 8.50:1 |
Values
| HEX | #28571B |
| RGB | rgb(40, 87, 27) |
| HSL | hsl(107, 53%, 22%) |
| OKLCH | oklch(40.9% 0.104 139.5) |
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 #28571B | 8.50:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #28571B | 2.46:1 | Fails | Lc 15.0 | Not readable |
| #28571B text on white | 8.50:1 | AAA | Lc 89.0 | Fine for body text |
| #28571B text on black | 2.46:1 | Fails | Lc -13.2 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CEDFCA
oklch(88.5% 0.034 139.7)
-
Step 300
300
#ADCBA5
oklch(81% 0.062 139.1)
-
Step 400
400
#80B075
oklch(70.8% 0.098 139.8)
-
Step 500
500
#5F9B50
oklch(63% 0.124 139.6)
-
Step 600
600
#448533
oklch(55.5% 0.134 139.6)
-
Step 700
700
#357125
oklch(49.1% 0.126 139.6)
-
Step 800
800 (this color)
#28571B
oklch(40.9% 0.104 139.5)
-
Step 900
900
#294C20
oklch(37.8% 0.081 139.5)
-
Step 950
950
#182C13
oklch(26.8% 0.051 139.5)
#28571B 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) | #5A4F14 | 0.071 |
| Deuteranopia (no green cones) | #534B20 | 0.070 |
| Tritanopia (no blue cones) | #24544A | 0.070 |
| Achromatopsia (no color) | #4D4D4D | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28571B
#28571B
oklch(40.9% 0.104 139.5)
- #62356D
#62356D
oklch(40.9% 0.104 319.5)
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 #28571B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.017
- Deep Green #02590F ΔE 0.027
- Forest #0B5509 ΔE 0.028
- Pine #2B5D34 ΔE 0.032
- Spruce #0A5F38 ΔE 0.036
- Army Green #4B5D16 ΔE 0.049
- Dark Green #006400 ΔE 0.052
- Bottle Green #044A05 ΔE 0.055
Use #28571B 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.