#437F50
Closest named color: Dark Sage (#598556). oklch(54.3% 0.096 149.3), rgb(67, 127, 80).
Aa
White text reads best on this color (4.78:1).
About this color
#437F50 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.096 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.033 away. White text reads best on it, at 4.78:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.39:1 |
| White text | 4.78:1 |
Values
| HEX | #437F50 |
| RGB | rgb(67, 127, 80) |
| HSL | hsl(133, 31%, 38%) |
| OKLCH | oklch(54.3% 0.096 149.3) |
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 #437F50 | 4.78:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #437F50 | 4.39:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #437F50 text on white | 4.78:1 | AA | Lc 73.0 | Content text, not long reading |
| #437F50 text on black | 4.39:1 | AA large text | Lc -28.7 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4ECE5
oklch(93.5% 0.013 149.2)
-
Step 200
200
#CFDED1
oklch(88.6% 0.024 149.3)
-
Step 300
300
#AEC9B2
oklch(80.9% 0.043 149.5)
-
Step 400
400
#82AD89
oklch(70.6% 0.07 149.3)
-
Step 500
500
#62996C
oklch(63.2% 0.089 149.1)
-
Step 600
600 (this color)
#437F50
oklch(54.3% 0.096 149.3)
-
Step 700
700
#386F44
oklch(49.2% 0.09 149.2)
-
Step 800
800
#2F5A38
oklch(42.6% 0.074 149.2)
-
Step 900
900
#2A4A31
oklch(37.6% 0.057 149.9)
-
Step 950
950
#192B1D
oklch(26.9% 0.035 150.5)
#437F50 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) | #80764D | 0.080 |
| Deuteranopia (no green cones) | #777053 | 0.079 |
| Tritanopia (no blue cones) | #387D73 | 0.054 |
| Achromatopsia (no color) | #727272 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437F50
#437F50
oklch(54.3% 0.096 149.3)
- #8E5A8B
#8E5A8B
oklch(54.2% 0.096 328.8)
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 #437F50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.033
- Sea Green #2E8B57 ΔE 0.036
- Military Green #667C3E ΔE 0.041
- Jungle Green #048243 ΔE 0.042
- Muddy Green #657432 ΔE 0.049
- Swamp #698339 ΔE 0.052
- Viridian #1E9167 ΔE 0.053
- Fern Green #548D44 ΔE 0.053
Use #437F50 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.