#537A57
Closest named color: Dark Sage (#598556). oklch(54% 0.07 147.1), rgb(83, 122, 87).
Aa
White text reads best on this color (4.89:1).
About this color
#537A57 is a medium-dark, muted green. In OKLCH its lightness is 54%, its chroma 0.070 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.036 away. White text reads best on it, at 4.89:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.28:1 |
| White text | 4.89:1 |
Values
| HEX | #537A57 |
| RGB | rgb(83, 122, 87) |
| HSL | hsl(126, 19%, 40%) |
| OKLCH | oklch(54% 0.07 147.1) |
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 #537A57 | 4.89:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #537A57 | 4.28:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #537A57 text on white | 4.89:1 | AA | Lc 73.9 | Content text, not long reading |
| #537A57 text on black | 4.28:1 | AA large text | Lc -27.8 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DCD3
oklch(88.4% 0.016 148.4)
-
Step 300
300
#B4C6B5
oklch(80.8% 0.031 146.8)
-
Step 400
400
#8DAA8F
oklch(70.8% 0.05 146.9)
-
Step 500
500
#709473
oklch(63% 0.063 146.9)
-
Step 600
600 (this color)
#537A57
oklch(54% 0.07 147.1)
-
Step 700
700
#476B4B
oklch(49.1% 0.065 147.3)
-
Step 800
800
#3B573E
oklch(42.7% 0.053 147.3)
-
Step 900
900
#334835
oklch(37.8% 0.042 147.1)
-
Step 950
950
#1E2A1F
oklch(27% 0.026 147)
#537A57 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) | #7B7355 | 0.057 |
| Deuteranopia (no green cones) | #756F59 | 0.056 |
| Tritanopia (no blue cones) | #4E7871 | 0.042 |
| Achromatopsia (no color) | #717171 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537A57
#537A57
oklch(54% 0.07 147.1)
- #856084
#856084
oklch(54% 0.071 327.4)
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 #537A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.036
- Military Green #667C3E ΔE 0.039
- Muddy Green #657432 ΔE 0.045
- Dark Moss Green #606C38 ΔE 0.047
- Dark Olive Green #556B2F ΔE 0.057
- Swamp #698339 ΔE 0.058
- Sea Green #2E8B57 ΔE 0.058
- Slate Green #658D6D ΔE 0.065
Use #537A57 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.