#31453A
Closest named color: Charcoal Grey (#3C4142). oklch(37% 0.032 160.3), rgb(49, 69, 58).
Aa
White text reads best on this color (10.27:1).
About this color
#31453A is a dark, muted green. In OKLCH its lightness is 37%, its chroma 0.032 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 0.028 away. White text reads best on it, at 10.27:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #31453A |
| RGB | rgb(49, 69, 58) |
| HSL | hsl(147, 17%, 23%) |
| OKLCH | oklch(37% 0.032 160.3) |
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 #31453A | 10.27:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #31453A | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #31453A text on white | 10.27:1 | AAA | Lc 93.8 | Preferred for body text |
| #31453A text on black | 2.04:1 | Fails | Lc -8.7 | 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 900.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD6
oklch(88.5% 0.013 159.9)
-
Step 300
300
#B4C6BB
oklch(81% 0.025 159)
-
Step 400
400
#8DA899
oklch(70.7% 0.037 161)
-
Step 500
500
#709380
oklch(63.1% 0.048 160.9)
-
Step 600
600
#587D69
oklch(55.6% 0.052 160.5)
-
Step 700
700
#486A57
oklch(49.2% 0.05 159.4)
-
Step 800
800
#3B5647
oklch(42.7% 0.041 159.7)
-
Step 900
900 (this color)
#31453A
oklch(37% 0.032 160.3)
-
Step 950
950
#1E2A23
oklch(27.1% 0.021 159)
#31453A 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) | #444239 | 0.030 |
| Deuteranopia (no green cones) | #41403B | 0.029 |
| Tritanopia (no blue cones) | #2D4542 | 0.014 |
| Achromatopsia (no color) | #414141 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31453A
#31453A
oklch(37% 0.032 160.3)
- #4B3945
#4B3945
oklch(36.9% 0.032 338.9)
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 #31453A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.040
- Onyx #343A40 ΔE 0.042
- Charcoal #264653 ΔE 0.043
- Dark Teal #014D4E ΔE 0.045
- Dark Blue Green #005249 ΔE 0.049
- Evergreen #05472A ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.056
Use #31453A 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.