#31663B
Closest named color: Pine (#2B5D34). oklch(46.2% 0.09 148.2), rgb(49, 102, 59).
Aa
White text reads best on this color (6.78:1).
About this color
#31663B is a medium-dark, moderately saturated green. In OKLCH its lightness is 46%, its chroma 0.090 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.030 away. White text reads best on it, at 6.78:1.
| Hue family | Greens |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #31663B |
| RGB | rgb(49, 102, 59) |
| HSL | hsl(131, 35%, 30%) |
| OKLCH | oklch(46.2% 0.09 148.2) |
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 #31663B | 6.78:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #31663B | 3.09:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #31663B text on white | 6.78:1 | AA | Lc 83.2 | Fine for body text |
| #31663B text on black | 3.09:1 | AA large text | Lc -18.7 | 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 700.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4ECE5
oklch(93.5% 0.013 149.2)
-
Step 200
200
#CFDED0
oklch(88.5% 0.025 147.3)
-
Step 300
300
#AEC9B1
oklch(80.9% 0.044 148.3)
-
Step 400
400
#83AD89
oklch(70.7% 0.069 148.7)
-
Step 500
500
#63986B
oklch(63% 0.088 148.2)
-
Step 600
600
#498353
oklch(55.7% 0.096 148.2)
-
Step 700
700 (this color)
#31663B
oklch(46.2% 0.09 148.2)
-
Step 800
800
#305A37
oklch(42.7% 0.074 148)
-
Step 900
900
#2B4A30
oklch(37.7% 0.058 148.3)
-
Step 950
950
#1A2B1C
oklch(26.9% 0.036 147.4)
#31663B 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) | #675E38 | 0.073 |
| Deuteranopia (no green cones) | #5F593E | 0.071 |
| Tritanopia (no blue cones) | #27645B | 0.051 |
| Achromatopsia (no color) | #5B5B5B | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31663B
#31663B
oklch(46.2% 0.09 148.2)
- #734572
#734572
oklch(46.1% 0.09 327.7)
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 #31663B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.030
- Spruce #0A5F38 ΔE 0.037
- Camo Green #526525 ΔE 0.041
- Camouflage Green #4B6113 ΔE 0.042
- Army Green #4B5D16 ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.047
- Dark Olive Green #556B2F ΔE 0.048
- Dark Moss Green #606C38 ΔE 0.063
Use #31663B 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.