#538644
Closest named color: Fern Green (#548D44). oklch(56.7% 0.111 138.9), rgb(83, 134, 68).
Aa
Black text reads best on this color (4.86:1).
About this color
#538644 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.111 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.021 away. Black text reads best on it, at 4.86:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #538644 |
| RGB | rgb(83, 134, 68) |
| HSL | hsl(106, 33%, 40%) |
| OKLCH | oklch(56.7% 0.111 138.9) |
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 #538644 | 4.31:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #538644 | 4.86:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #538644 text on white | 4.31:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #538644 text on black | 4.86:1 | AA | Lc -31.9 | 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
#E5ECE3
oklch(93.5% 0.014 138.7)
-
Step 200
200
#D0DECC
oklch(88.5% 0.029 138.7)
-
Step 300
300
#B1C9AA
oklch(80.9% 0.05 138.6)
-
Step 400
400
#87AD7D
oklch(70.7% 0.08 139.2)
-
Step 500
500
#69985B
oklch(63% 0.102 138.7)
-
Step 600
600 (this color)
#538644
oklch(56.7% 0.111 138.9)
-
Step 700
700
#406E32
oklch(49% 0.103 138.8)
-
Step 800
800
#355A2A
oklch(42.7% 0.086 138.9)
-
Step 900
900
#2F4A27
oklch(37.7% 0.066 138.8)
-
Step 950
950
#1C2B17
oklch(26.9% 0.041 138.1)
#538644 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) | #8A7C3F | 0.077 |
| Deuteranopia (no green cones) | #827848 | 0.074 |
| Tritanopia (no blue cones) | #508276 | 0.075 |
| Achromatopsia (no color) | #7A7A7A | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538644
#538644
oklch(56.7% 0.111 138.9)
- #9260A0
#9260A0
oklch(56.7% 0.111 318.7)
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 #538644, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.021
- Swamp #698339 ΔE 0.026
- Dark Sage #598556 ΔE 0.026
- Moss Green #658B38 ΔE 0.030
- Light Forest Green #4F9153 ΔE 0.032
- Sea Green #2E8B57 ΔE 0.033
- Military Green #667C3E ΔE 0.034
- Mossy Green #638B27 ΔE 0.038
Use #538644 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.