#438D4B
Closest named color: Fern Green (#548D44). oklch(57.9% 0.123 146), rgb(67, 141, 75).
Aa
Black text reads best on this color (5.15:1).
About this color
#438D4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.123 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.016 away. Black text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #438D4B |
| RGB | rgb(67, 141, 75) |
| HSL | hsl(126, 36%, 41%) |
| OKLCH | oklch(57.9% 0.123 146) |
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 #438D4B | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #438D4B | 5.15:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #438D4B text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #438D4B text on black | 5.15:1 | AA | Lc -33.9 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CDDFCD
oklch(88.5% 0.031 145.3)
-
Step 300
300
#AACBAC
oklch(80.9% 0.056 146.7)
-
Step 400
400
#7CB07F
oklch(70.7% 0.09 146)
-
Step 500
500
#599C5E
oklch(63.2% 0.114 145.7)
-
Step 600
600 (this color)
#438D4B
oklch(57.9% 0.123 146)
-
Step 700
700
#2D7136
oklch(49% 0.114 146.1)
-
Step 800
800
#275C2D
oklch(42.6% 0.094 145.9)
-
Step 900
900
#254C29
oklch(37.8% 0.074 146.1)
-
Step 950
950
#162C18
oklch(26.8% 0.046 146.2)
#438D4B 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) | #8F8246 | 0.096 |
| Deuteranopia (no green cones) | #857B4F | 0.095 |
| Tritanopia (no blue cones) | #368A7D | 0.074 |
| Achromatopsia (no color) | #7E7E7E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438D4B
#438D4B
oklch(57.9% 0.123 146)
- #9F5EA1
#9F5EA1
oklch(57.9% 0.124 326)
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 #438D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.016
- Light Forest Green #4F9153 ΔE 0.020
- Sea Green #2E8B57 ΔE 0.022
- Moss Green #658B38 ΔE 0.036
- Viridian #1E9167 ΔE 0.036
- Dark Sage #598556 ΔE 0.039
- Mossy Green #638B27 ΔE 0.041
- Swamp #698339 ΔE 0.044
Use #438D4B 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.