#438C4B
Closest named color: Fern Green (#548D44). oklch(57.6% 0.122 146), rgb(67, 140, 75).
Aa
Black text reads best on this color (5.09:1).
About this color
#438C4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.122 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 0.018 away. Black text reads best on it, at 5.09:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.09:1 |
| White text | 4.12:1 |
Values
| HEX | #438C4B |
| RGB | rgb(67, 140, 75) |
| HSL | hsl(127, 35%, 41%) |
| OKLCH | oklch(57.6% 0.122 146) |
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 #438C4B | 4.12:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #438C4B | 5.09:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #438C4B text on white | 4.12:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #438C4B text on black | 5.09:1 | AA | Lc -33.5 | 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
#ABCBAC
oklch(81% 0.055 145.9)
-
Step 400
400
#7DB080
oklch(70.8% 0.088 146)
-
Step 500
500
#599B5F
oklch(63% 0.112 146.1)
-
Step 600
600 (this color)
#438C4B
oklch(57.6% 0.122 146)
-
Step 700
700
#2E7137
oklch(49% 0.113 146.2)
-
Step 800
800
#275C2E
oklch(42.6% 0.093 146.4)
-
Step 900
900
#254C29
oklch(37.8% 0.074 146.1)
-
Step 950
950
#162C18
oklch(26.8% 0.046 146.2)
#438C4B 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) | #8E8146 | 0.095 |
| Deuteranopia (no green cones) | #847A4F | 0.094 |
| Tritanopia (no blue cones) | #37897C | 0.072 |
| Achromatopsia (no color) | #7D7D7D | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438C4B
#438C4B
oklch(57.6% 0.122 146)
- #9E5EA0
#9E5EA0
oklch(57.8% 0.122 325.9)
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 #438C4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.018
- Sea Green #2E8B57 ΔE 0.021
- Light Forest Green #4F9153 ΔE 0.021
- Moss Green #658B38 ΔE 0.036
- Viridian #1E9167 ΔE 0.036
- Dark Sage #598556 ΔE 0.037
- Mossy Green #638B27 ΔE 0.042
- Swamp #698339 ΔE 0.043
Use #438C4B 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.