#37533E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.3% 0.049 151.7), rgb(55, 83, 62).
Aa
White text reads best on this color (8.50:1).
About this color
#37533E is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.049 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 0.035 away. White text reads best on it, at 8.50:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.46:1 |
| White text | 8.50:1 |
Values
| HEX | #37533E |
| RGB | rgb(55, 83, 62) |
| HSL | hsl(135, 20%, 27%) |
| OKLCH | oklch(41.3% 0.049 151.7) |
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 #37533E | 8.50:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #37533E | 2.46:1 | Fails | Lc 14.8 | Not readable |
| #37533E text on white | 8.50:1 | AAA | Lc 89.2 | Fine for body text |
| #37533E text on black | 2.46:1 | Fails | Lc -13.0 | 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
#B4C6B8
oklch(80.9% 0.028 152.3)
-
Step 400
400
#8CA993
oklch(70.6% 0.045 152.4)
-
Step 500
500
#709478
oklch(63.1% 0.058 151.3)
-
Step 600
600
#577E61
oklch(55.5% 0.063 152)
-
Step 700
700
#476A50
oklch(49% 0.058 151.9)
-
Step 800
800 (this color)
#37533E
oklch(41.3% 0.049 151.7)
-
Step 900
900
#334838
oklch(37.9% 0.038 151.6)
-
Step 950
950
#1E2A21
oklch(27.1% 0.023 152.3)
#37533E 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) | #534E3D | 0.043 |
| Deuteranopia (no green cones) | #4F4B3F | 0.042 |
| Tritanopia (no blue cones) | #33524D | 0.026 |
| Achromatopsia (no color) | #4D4D4D | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37533E
#37533E
oklch(41.3% 0.049 151.7)
- #5B4257
#5B4257
oklch(41.4% 0.047 332)
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 #37533E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Pine #2B5D34 ΔE 0.042
- Dark Blue Green #005249 ΔE 0.043
- Spruce #0A5F38 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.054
- Deep Teal #00555A ΔE 0.054
- Dark Teal #014D4E ΔE 0.056
- Navy Green #35530A ΔE 0.061
Use #37533E 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.