#31473A
Closest named color: Charcoal Grey (#3C4142). oklch(37.5% 0.035 158.2), rgb(49, 71, 58).
Aa
White text reads best on this color (10.03:1).
About this color
#31473A is a dark, muted green. In OKLCH its lightness is 38%, its chroma 0.035 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.032 away. White text reads best on it, at 10.03:1.
| Hue family | Greens |
| Lightness | dark (38%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.09:1 |
| White text | 10.03:1 |
Values
| HEX | #31473A |
| RGB | rgb(49, 71, 58) |
| HSL | hsl(145, 18%, 24%) |
| OKLCH | oklch(37.5% 0.035 158.2) |
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 #31473A | 10.03:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #31473A | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #31473A text on white | 10.03:1 | AAA | Lc 93.3 | Preferred for body text |
| #31473A 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B3C6BA
oklch(80.9% 0.027 158.1)
-
Step 400
400
#8BA997
oklch(70.7% 0.042 158.8)
-
Step 500
500
#6E947D
oklch(63.1% 0.054 157.8)
-
Step 600
600
#557E66
oklch(55.6% 0.059 158.1)
-
Step 700
700
#456A55
oklch(49% 0.054 158.7)
-
Step 800
800
#395746
oklch(42.8% 0.046 158.9)
-
Step 900
900 (this color)
#31473A
oklch(37.5% 0.035 158.2)
-
Step 950
950
#1D2A22
oklch(27% 0.023 157.4)
#31473A 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) | #474439 | 0.034 |
| Deuteranopia (no green cones) | #43413B | 0.033 |
| Tritanopia (no blue cones) | #2D4743 | 0.015 |
| Achromatopsia (no color) | #424242 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31473A
#31473A
oklch(37.5% 0.035 158.2)
- #4E3A48
#4E3A48
oklch(37.6% 0.036 337.6)
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 #31473A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Teal #014D4E ΔE 0.043
- Dark Blue Green #005249 ΔE 0.045
- Charcoal #264653 ΔE 0.045
- Onyx #343A40 ΔE 0.048
- Evergreen #05472A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.058
Use #31473A 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.