#37583D
Closest named color: Pine (#2B5D34). oklch(42.7% 0.059 149.1), rgb(55, 88, 61).
Aa
White text reads best on this color (7.99:1).
About this color
#37583D is a dark, muted green. In OKLCH its lightness is 43%, its chroma 0.059 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.028 away. White text reads best on it, at 7.99:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.62:1 |
| White text | 7.99:1 |
Values
| HEX | #37583D |
| RGB | rgb(55, 88, 61) |
| HSL | hsl(131, 23%, 28%) |
| OKLCH | oklch(42.7% 0.059 149.1) |
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 #37583D | 7.99:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #37583D | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #37583D text on white | 7.99:1 | AAA | Lc 87.6 | Fine for body text |
| #37583D text on black | 2.62:1 | Fails | Lc -14.5 | Not readable |
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 800.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B2C7B5
oklch(80.9% 0.034 149.5)
-
Step 400
400
#89AB8E
oklch(70.8% 0.056 149.1)
-
Step 500
500
#6B9672
oklch(63.2% 0.071 149)
-
Step 600
600
#52805B
oklch(55.6% 0.076 149.6)
-
Step 700
700
#436C4A
oklch(49.1% 0.071 148.7)
-
Step 800
800 (this color)
#37583D
oklch(42.7% 0.059 149.1)
-
Step 900
900
#304934
oklch(37.8% 0.047 148.8)
-
Step 950
950
#1C2B1F
oklch(27.1% 0.03 150.2)
#37583D 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) | #59533B | 0.050 |
| Deuteranopia (no green cones) | #534F3F | 0.048 |
| Tritanopia (no blue cones) | #325751 | 0.033 |
| Achromatopsia (no color) | #515151 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37583D
#37583D
oklch(42.7% 0.059 149.1)
- #61435F
#61435F
oklch(42.7% 0.059 328.8)
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 #37583D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.028
- Spruce #0A5F38 ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Blue Green #005249 ΔE 0.051
- Navy Green #35530A ΔE 0.055
- Army Green #4B5D16 ΔE 0.055
- Deep Teal #00555A ΔE 0.060
Use #37583D 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.