#3F644F
Closest named color: Dark Green Blue (#1F6357). oklch(46.9% 0.055 158.5), rgb(63, 100, 79).
Aa
White text reads best on this color (6.67:1).
About this color
#3F644F is a medium-dark, muted green. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.031 away. White text reads best on it, at 6.67:1.
| Hue family | Greens |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #3F644F |
| RGB | rgb(63, 100, 79) |
| HSL | hsl(146, 23%, 32%) |
| OKLCH | oklch(46.9% 0.055 158.5) |
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 #3F644F | 6.67:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #3F644F | 3.14:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #3F644F text on white | 6.67:1 | AA | Lc 82.9 | Fine for body text |
| #3F644F text on black | 3.14:1 | AA large text | Lc -19.0 | 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 700.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B3C6BA
oklch(80.9% 0.027 158.1)
-
Step 400
400
#8BA997
oklch(70.7% 0.042 158.8)
-
Step 500
500
#6E947D
oklch(63.1% 0.054 157.8)
-
Step 600
600
#557E67
oklch(55.6% 0.058 159.2)
-
Step 700
700 (this color)
#3F644F
oklch(46.9% 0.055 158.5)
-
Step 800
800
#395746
oklch(42.8% 0.046 158.9)
-
Step 900
900
#31473B
oklch(37.6% 0.034 160.3)
-
Step 950
950
#1D2A22
oklch(27% 0.023 157.4)
#3F644F 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) | #635F4E | 0.051 |
| Deuteranopia (no green cones) | #5D5A50 | 0.050 |
| Tritanopia (no blue cones) | #37645E | 0.024 |
| Achromatopsia (no color) | #5C5C5C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F644F
#3F644F
oklch(46.9% 0.055 158.5)
- #6F4F65
#6F4F65
oklch(47% 0.054 338.5)
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 #3F644F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.031
- Pine #2B5D34 ΔE 0.050
- Dark Aqua #05696B ΔE 0.050
- Camo Green #526525 ΔE 0.057
- Dark Olive Green #556B2F ΔE 0.059
- Spruce #0A5F38 ΔE 0.060
- Dark Aquamarine #017371 ΔE 0.061
- Dark Moss Green #606C38 ΔE 0.062
Use #3F644F 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.