#538633
Closest named color: Fern Green (#548D44). oklch(56.5% 0.127 135.2), rgb(83, 134, 51).
Aa
Black text reads best on this color (4.82:1).
About this color
#538633 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.127 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.024 away. Black text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #538633 |
| RGB | rgb(83, 134, 51) |
| HSL | hsl(97, 45%, 36%) |
| OKLCH | oklch(56.5% 0.127 135.2) |
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 #538633 | 4.35:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #538633 | 4.82:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #538633 text on white | 4.35:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #538633 text on black | 4.82:1 | AA | Lc -31.7 | Non-text elements, placeholder text |
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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E5EDE2
oklch(93.7% 0.017 137)
-
Step 200
200
#D0DEC9
oklch(88.4% 0.032 135)
-
Step 300
300
#B1C9A5
oklch(80.8% 0.056 135.2)
-
Step 400
400
#88AE73
oklch(70.8% 0.092 134.9)
-
Step 500
500
#69994E
oklch(63.1% 0.117 135.3)
-
Step 600
600 (this color)
#538633
oklch(56.5% 0.127 135.2)
-
Step 700
700
#416F22
oklch(49.1% 0.119 135.1)
-
Step 800
800
#365A1E
oklch(42.6% 0.098 134.9)
-
Step 900
900
#2F4A1F
oklch(37.6% 0.075 135.1)
-
Step 950
950
#1C2C13
oklch(27.1% 0.048 135.2)
#538633 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) | #8B7C2A | 0.078 |
| Deuteranopia (no green cones) | #847739 | 0.079 |
| Tritanopia (no blue cones) | #528174 | 0.092 |
| Achromatopsia (no color) | #797979 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538633
#538633
oklch(56.5% 0.127 135.2)
- #925CA9
#925CA9
oklch(56.5% 0.128 315.2)
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 #538633, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.024
- Mossy Green #638B27 ΔE 0.027
- Moss Green #658B38 ΔE 0.028
- Sap Green #5C8B15 ΔE 0.029
- Swamp #698339 ΔE 0.030
- Olive Green #677A04 ΔE 0.039
- Light Forest Green #4F9153 ΔE 0.040
- Khaki Green #728639 ΔE 0.041
Use #538633 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.