#537821
Closest named color: Olive Green (#677A04). oklch(52.6% 0.122 129.8), rgb(83, 120, 33).
Aa
White text reads best on this color (5.15:1).
About this color
#537821 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.122 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.029 away. White text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #537821 |
| RGB | rgb(83, 120, 33) |
| HSL | hsl(86, 57%, 30%) |
| OKLCH | oklch(52.6% 0.122 129.8) |
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 #537821 | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #537821 | 4.07:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #537821 text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #537821 text on black | 4.07:1 | AA large text | Lc -26.4 | 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 600.
-
Step 50
50
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D3DDC9
oklch(88.4% 0.029 128.8)
-
Step 300
300
#B5C8A3
oklch(80.8% 0.055 129.8)
-
Step 400
400
#8FAC71
oklch(70.8% 0.088 129.7)
-
Step 500
500
#73974A
oklch(63.1% 0.113 129.8)
-
Step 600
600 (this color)
#537821
oklch(52.6% 0.122 129.8)
-
Step 700
700
#4B6D1D
oklch(49.2% 0.114 129.8)
-
Step 800
800
#3E591B
oklch(42.8% 0.094 129.7)
-
Step 900
900
#35491C
oklch(37.7% 0.073 129.3)
-
Step 950
950
#1F2B11
oklch(27% 0.047 129.5)
#537821 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) | #7E6F13 | 0.064 |
| Deuteranopia (no green cones) | #796C29 | 0.066 |
| Tritanopia (no blue cones) | #557367 | 0.094 |
| Achromatopsia (no color) | #6D6D6D | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537821
#537821
oklch(52.6% 0.122 129.8)
- #80549F
#80549F
oklch(52.6% 0.123 309.8)
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 #537821, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.029
- Murky Green #6C7A0E ΔE 0.035
- Muddy Green #657432 ΔE 0.035
- Military Green #667C3E ΔE 0.042
- Dark Grass Green #388004 ΔE 0.042
- Tree Green #2A7E19 ΔE 0.043
- Dark Olive Green #556B2F ΔE 0.045
- Browny Green #6F6C0A ΔE 0.047
Use #537821 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.