#31473B
Closest named color: Charcoal Grey (#3C4142). oklch(37.6% 0.034 160.3), rgb(49, 71, 59).
Aa
White text reads best on this color (10.02:1).
About this color
#31473B is a dark, muted green. In OKLCH its lightness is 38%, its chroma 0.034 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.031 away. White text reads best on it, at 10.02:1.
| Hue family | Greens |
| Lightness | dark (38%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.09:1 |
| White text | 10.02:1 |
Values
| HEX | #31473B |
| RGB | rgb(49, 71, 59) |
| HSL | hsl(147, 18%, 24%) |
| OKLCH | oklch(37.6% 0.034 160.3) |
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 #31473B | 10.02:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #31473B | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #31473B text on white | 10.02:1 | AAA | Lc 93.2 | Preferred for body text |
| #31473B text on black | 2.09:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD6
oklch(88.4% 0.014 162.4)
-
Step 300
300
#B3C6BB
oklch(80.9% 0.026 160.4)
-
Step 400
400
#8BA998
oklch(70.7% 0.041 160.3)
-
Step 500
500
#6E947F
oklch(63.2% 0.053 160.2)
-
Step 600
600
#557E68
oklch(55.6% 0.057 160.3)
-
Step 700
700
#456A56
oklch(49% 0.053 160)
-
Step 800
800
#395747
oklch(42.8% 0.045 160.4)
-
Step 900
900 (this color)
#31473B
oklch(37.6% 0.034 160.3)
-
Step 950
950
#1D2A23
oklch(27% 0.022 160.9)
#31473B 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) | #46443A | 0.032 |
| Deuteranopia (no green cones) | #43413C | 0.033 |
| Tritanopia (no blue cones) | #2D4744 | 0.015 |
| Achromatopsia (no color) | #424242 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31473B
#31473B
oklch(37.6% 0.034 160.3)
- #4E3A47
#4E3A47
oklch(37.5% 0.035 339.8)
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 #31473B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Teal #014D4E ΔE 0.042
- Charcoal #264653 ΔE 0.043
- Dark Blue Green #005249 ΔE 0.044
- Onyx #343A40 ΔE 0.047
- Evergreen #05472A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.056
Use #31473B 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.