#437C57
Closest named color: Dark Sage (#598556). oklch(53.6% 0.084 154), rgb(67, 124, 87).
Aa
White text reads best on this color (4.93:1).
About this color
#437C57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.084 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.039 away. White text reads best on it, at 4.93:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #437C57 |
| RGB | rgb(67, 124, 87) |
| HSL | hsl(141, 30%, 37%) |
| OKLCH | oklch(53.6% 0.084 154) |
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 #437C57 | 4.93:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #437C57 | 4.25:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #437C57 text on white | 4.93:1 | AA | Lc 74.0 | Content text, not long reading |
| #437C57 text on black | 4.25:1 | AA large text | Lc -27.7 | 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
#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
#AFC8B6
oklch(80.9% 0.037 154.2)
-
Step 400
400
#83AC90
oklch(70.7% 0.06 154.8)
-
Step 500
500
#639774
oklch(63% 0.077 154.2)
-
Step 600
600 (this color)
#437C57
oklch(53.6% 0.084 154)
-
Step 700
700
#3A6E4C
oklch(49.2% 0.079 153.8)
-
Step 800
800
#30593F
oklch(42.6% 0.064 154.8)
-
Step 900
900
#2B4A35
oklch(37.8% 0.052 153.7)
-
Step 950
950
#1A2B1F
oklch(27% 0.032 153.1)
#437C57 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) | #7C7455 | 0.075 |
| Deuteranopia (no green cones) | #736E59 | 0.072 |
| Tritanopia (no blue cones) | #377B72 | 0.042 |
| Achromatopsia (no color) | #707070 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437C57
#437C57
oklch(53.6% 0.084 154)
- #8B5B82
#8B5B82
oklch(53.7% 0.083 333.6)
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 #437C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.039
- Sea Green #2E8B57 ΔE 0.047
- Military Green #667C3E ΔE 0.047
- Muddy Green #657432 ΔE 0.052
- Jungle Green #048243 ΔE 0.053
- Dark Moss Green #606C38 ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.059
- Bluegreen #017A79 ΔE 0.060
Use #437C57 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.