#37513E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.8% 0.045 152.5), rgb(55, 81, 62).
Aa
White text reads best on this color (8.71:1).
About this color
#37513E is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.045 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.032 away. White text reads best on it, at 8.71:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #37513E |
| RGB | rgb(55, 81, 62) |
| HSL | hsl(136, 19%, 27%) |
| OKLCH | oklch(40.8% 0.045 152.5) |
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 #37513E | 8.71:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #37513E | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #37513E text on white | 8.71:1 | AAA | Lc 89.8 | Fine for body text |
| #37513E text on black | 2.40:1 | Fails | Lc -12.4 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D2DCD4
oklch(88.5% 0.015 151.7)
-
Step 300
300
#B5C6B9
oklch(81% 0.026 152.8)
-
Step 400
400
#8EA994
oklch(70.8% 0.043 151.8)
-
Step 500
500
#71937A
oklch(63% 0.053 152.9)
-
Step 600
600
#597D63
oklch(55.5% 0.057 152.9)
-
Step 700
700
#496A52
oklch(49.2% 0.054 152.6)
-
Step 800
800 (this color)
#37513E
oklch(40.8% 0.045 152.5)
-
Step 900
900
#344739
oklch(37.7% 0.034 152.7)
-
Step 950
950
#1E2A21
oklch(27.1% 0.023 152.3)
#37513E 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) | #514D3D | 0.039 |
| Deuteranopia (no green cones) | #4D4A3F | 0.038 |
| Tritanopia (no blue cones) | #33504C | 0.024 |
| Achromatopsia (no color) | #4B4B4B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37513E
#37513E
oklch(40.8% 0.045 152.5)
- #594154
#594154
oklch(40.8% 0.044 333.9)
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 #37513E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Blue Green #005249 ΔE 0.041
- Pine #2B5D34 ΔE 0.048
- Dark Teal #014D4E ΔE 0.052
- Deep Teal #00555A ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.056
- Spruce #0A5F38 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.058
Use #37513E 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.