#437F57
Closest named color: Dark Sage (#598556). oklch(54.4% 0.089 153.2), rgb(67, 127, 87).
Aa
White text reads best on this color (4.75:1).
About this color
#437F57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.089 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.032 away. White text reads best on it, at 4.75:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #437F57 |
| RGB | rgb(67, 127, 87) |
| HSL | hsl(140, 31%, 38%) |
| OKLCH | oklch(54.4% 0.089 153.2) |
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 #437F57 | 4.75:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #437F57 | 4.41:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #437F57 text on white | 4.75:1 | AA | Lc 72.9 | Content text, not long reading |
| #437F57 text on black | 4.41:1 | AA large text | Lc -28.8 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CFDED2
oklch(88.6% 0.023 151.6)
-
Step 300
300
#AEC9B5
oklch(81% 0.04 153.3)
-
Step 400
400
#82AD8E
oklch(70.8% 0.065 153.2)
-
Step 500
500
#619872
oklch(63.1% 0.082 153.4)
-
Step 600
600 (this color)
#437F57
oklch(54.4% 0.089 153.2)
-
Step 700
700
#376E4A
oklch(49% 0.083 153.5)
-
Step 800
800
#2F5A3D
oklch(42.8% 0.068 153.1)
-
Step 900
900
#2A4A34
oklch(37.7% 0.054 153.2)
-
Step 950
950
#192B1F
oklch(26.9% 0.033 154.5)
#437F57 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) | #7F7655 | 0.079 |
| Deuteranopia (no green cones) | #767059 | 0.077 |
| Tritanopia (no blue cones) | #367E74 | 0.045 |
| Achromatopsia (no color) | #737373 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437F57
#437F57
oklch(54.4% 0.089 153.2)
- #8F5C86
#8F5C86
oklch(54.5% 0.089 333.3)
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 #437F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.032
- Sea Green #2E8B57 ΔE 0.038
- Military Green #667C3E ΔE 0.044
- Jungle Green #048243 ΔE 0.049
- Viridian #1E9167 ΔE 0.053
- Muddy Green #657432 ΔE 0.053
- Swamp #698339 ΔE 0.057
- Fern Green #548D44 ΔE 0.058
Use #437F57 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.