#28521B
Closest named color: Navy Green (#35530A). oklch(39.4% 0.096 139), rgb(40, 82, 27).
Aa
White text reads best on this color (9.07:1).
About this color
#28521B is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.096 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 0.019 away. White text reads best on it, at 9.07:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #28521B |
| RGB | rgb(40, 82, 27) |
| HSL | hsl(106, 50%, 21%) |
| OKLCH | oklch(39.4% 0.096 139) |
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 #28521B | 9.07:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #28521B | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #28521B text on white | 9.07:1 | AAA | Lc 90.7 | Preferred for body text |
| #28521B text on black | 2.31:1 | Fails | Lc -11.6 | 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 900.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE0
oklch(93.5% 0.02 138.4)
-
Step 200
200
#CCE0C7
oklch(88.5% 0.04 139.4)
-
Step 300
300
#A9CCA0
oklch(80.8% 0.071 139.3)
-
Step 400
400
#7AB26B
oklch(70.7% 0.116 139.2)
-
Step 500
500
#569E40
oklch(63.1% 0.148 139)
-
Step 600
600
#39881B
oklch(55.6% 0.16 138.9)
-
Step 700
700
#2A730A
oklch(49% 0.149 139)
-
Step 800
800
#255E0F
oklch(42.7% 0.124 138.9)
-
Step 900
900 (this color)
#28521B
oklch(39.4% 0.096 139)
-
Step 950
950
#152D0E
oklch(26.9% 0.061 139.1)
#28521B 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) | #554B15 | 0.065 |
| Deuteranopia (no green cones) | #4F471F | 0.065 |
| Tritanopia (no blue cones) | #254F46 | 0.066 |
| Achromatopsia (no color) | #484848 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28521B
#28521B
oklch(39.4% 0.096 139)
- #5C3367
#5C3367
oklch(39.5% 0.097 318.9)
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 #28521B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.019
- Forest #0B5509 ΔE 0.030
- Deep Green #02590F ΔE 0.035
- Pine #2B5D34 ΔE 0.041
- Bottle Green #044A05 ΔE 0.044
- Pine Green #0A481E ΔE 0.044
- Spruce #0A5F38 ΔE 0.045
- Darkgreen #054907 ΔE 0.046
Use #28521B 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.