#31550B
Closest named color: Navy Green (#35530A). oklch(40.7% 0.107 133), rgb(49, 85, 11).
Aa
White text reads best on this color (8.62:1).
About this color
#31550B is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.107 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.007 away. White text reads best on it, at 8.62:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #31550B |
| RGB | rgb(49, 85, 11) |
| HSL | hsl(89, 77%, 19%) |
| OKLCH | oklch(40.7% 0.107 133) |
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 #31550B | 8.62:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #31550B | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #31550B text on white | 8.62:1 | AAA | Lc 89.4 | Fine for body text |
| #31550B text on black | 2.43:1 | Fails | Lc -12.8 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE0
oklch(93.6% 0.019 133.1)
-
Step 200
200
#D0DEC7
oklch(88.4% 0.034 133)
-
Step 300
300
#B1CAA1
oklch(80.9% 0.062 133.3)
-
Step 400
400
#88AE6C
oklch(70.6% 0.1 132.8)
-
Step 500
500
#6A9A43
oklch(63.2% 0.129 133)
-
Step 600
600
#518420
oklch(55.7% 0.14 133.1)
-
Step 700
700
#426F11
oklch(49.1% 0.129 132.8)
-
Step 800
800 (this color)
#31550B
oklch(40.7% 0.107 133)
-
Step 900
900
#2F4B18
oklch(37.8% 0.084 133.3)
-
Step 950
950
#1C2C0F
oklch(27.1% 0.053 132.9)
#31550B 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) | #594E00 | 0.060 |
| Deuteranopia (no green cones) | #544B14 | 0.061 |
| Tritanopia (no blue cones) | #315148 | 0.081 |
| Achromatopsia (no color) | #4C4C4C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31550B
#31550B
oklch(40.7% 0.107 133)
- #5D3572
#5D3572
oklch(40.6% 0.107 312.8)
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 #31550B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.007
- Forest #0B5509 ΔE 0.030
- Deep Green #02590F ΔE 0.032
- Pine #2B5D34 ΔE 0.041
- Army Green #4B5D16 ΔE 0.046
- Spruce #0A5F38 ΔE 0.048
- Green Brown #544E03 ΔE 0.053
- Camouflage Green #4B6113 ΔE 0.054
Use #31550B 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.