#437A55
Closest named color: Dark Sage (#598556). oklch(53.1% 0.083 153.3), rgb(67, 122, 85).
Aa
White text reads best on this color (5.05:1).
About this color
#437A55 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.083 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 0.044 away. White text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #437A55 |
| RGB | rgb(67, 122, 85) |
| HSL | hsl(140, 29%, 37%) |
| OKLCH | oklch(53.1% 0.083 153.3) |
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 #437A55 | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #437A55 | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #437A55 text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #437A55 text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#CFDDD3
oklch(88.4% 0.02 154.9)
-
Step 300
300
#AFC8B5
oklch(80.9% 0.038 152.7)
-
Step 400
400
#84AC8F
oklch(70.7% 0.06 153.2)
-
Step 500
500
#659774
oklch(63.1% 0.075 153.3)
-
Step 600
600 (this color)
#437A55
oklch(53.1% 0.083 153.3)
-
Step 700
700
#3B6D4C
oklch(49% 0.076 153.7)
-
Step 800
800
#31593E
oklch(42.6% 0.064 153.3)
-
Step 900
900
#2C4935
oklch(37.6% 0.049 153.4)
-
Step 950
950
#1A2B1F
oklch(27% 0.032 153.1)
#437A55 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) | #7A7253 | 0.073 |
| Deuteranopia (no green cones) | #726C57 | 0.072 |
| Tritanopia (no blue cones) | #387970 | 0.042 |
| Achromatopsia (no color) | #6F6F6F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437A55
#437A55
oklch(53.1% 0.083 153.3)
- #895980
#895980
oklch(53% 0.083 333.7)
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 #437A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.044
- Military Green #667C3E ΔE 0.049
- Muddy Green #657432 ΔE 0.051
- Dark Moss Green #606C38 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.052
- Dark Olive Green #556B2F ΔE 0.054
- Jungle Green #048243 ΔE 0.054
- Bluegreen #017A79 ΔE 0.060
Use #437A55 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.