#31583E
Closest named color: Pine (#2B5D34). oklch(42.3% 0.062 153.7), rgb(49, 88, 62).
Aa
White text reads best on this color (8.08:1).
About this color
#31583E is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.062 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.026 away. White text reads best on it, at 8.08:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.59:1 |
| White text | 8.08:1 |
Values
| HEX | #31583E |
| RGB | rgb(49, 88, 62) |
| HSL | hsl(140, 28%, 27%) |
| OKLCH | oklch(42.3% 0.062 153.7) |
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 #31583E | 8.08:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #31583E | 2.59:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #31583E text on white | 8.08:1 | AAA | Lc 87.9 | Fine for body text |
| #31583E text on black | 2.59:1 | Fails | Lc -14.2 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#CFDDD3
oklch(88.4% 0.02 154.9)
-
Step 300
300
#AFC8B6
oklch(80.9% 0.037 154.2)
-
Step 400
400
#85AC90
oklch(70.8% 0.059 153.5)
-
Step 500
500
#659775
oklch(63.1% 0.074 154.1)
-
Step 600
600
#4B815D
oklch(55.5% 0.081 153.8)
-
Step 700
700
#3C6D4D
oklch(49% 0.075 154.1)
-
Step 800
800 (this color)
#31583E
oklch(42.3% 0.062 153.7)
-
Step 900
900
#2C4936
oklch(37.6% 0.048 154.7)
-
Step 950
950
#1A2B1F
oklch(27% 0.032 153.1)
#31583E 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) | #58523C | 0.056 |
| Deuteranopia (no green cones) | #524E40 | 0.055 |
| Tritanopia (no blue cones) | #295751 | 0.032 |
| Achromatopsia (no color) | #505050 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31583E
#31583E
oklch(42.3% 0.062 153.7)
- #63415C
#63415C
oklch(42.4% 0.062 334.3)
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 #31583E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.026
- Spruce #0A5F38 ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.043
- Dark Blue Green #005249 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.047
- Navy Green #35530A ΔE 0.055
- Deep Teal #00555A ΔE 0.056
- Army Green #4B5D16 ΔE 0.059
Use #31583E 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.