#31533E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.9% 0.053 156), rgb(49, 83, 62).
Aa
White text reads best on this color (8.61:1).
About this color
#31533E is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.053 and its hue 156°. 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 8.61:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #31533E |
| RGB | rgb(49, 83, 62) |
| HSL | hsl(143, 26%, 26%) |
| OKLCH | oklch(40.9% 0.053 156) |
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 #31533E | 8.61:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #31533E | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #31533E text on white | 8.61:1 | AAA | Lc 89.5 | Fine for body text |
| #31533E text on black | 2.43:1 | Fails | Lc -12.7 | 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
#D0DDD4
oklch(88.5% 0.019 155.8)
-
Step 300
300
#B1C7B8
oklch(80.9% 0.032 155.8)
-
Step 400
400
#88AA94
oklch(70.6% 0.049 156.5)
-
Step 500
500
#6A9579
oklch(63% 0.063 155.6)
-
Step 600
600
#508062
oklch(55.7% 0.07 155.9)
-
Step 700
700
#416C51
oklch(49.2% 0.065 155.6)
-
Step 800
800 (this color)
#31533E
oklch(40.9% 0.053 156)
-
Step 900
900
#2F4838
oklch(37.6% 0.041 155.8)
-
Step 950
950
#1C2A21
oklch(26.9% 0.025 156.1)
#31533E 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 | 0.050 |
| Deuteranopia (no green cones) | #4D4A3F | 0.048 |
| Tritanopia (no blue cones) | #2A524D | 0.026 |
| Achromatopsia (no color) | #4C4C4C | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31533E
#31533E
oklch(40.9% 0.053 156)
- #5D3F55
#5D3F55
oklch(41% 0.053 336.7)
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 #31533E, 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
- Dark Blue Green #005249 ΔE 0.036
- Pine #2B5D34 ΔE 0.041
- Spruce #0A5F38 ΔE 0.049
- Deep Teal #00555A ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.053
- Navy Green #35530A ΔE 0.059
Use #31533E 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.