#183B2B
Closest named color: Pakistan Green (#283618). oklch(32.1% 0.05 161.8), rgb(24, 59, 43).
Aa
White text reads best on this color (12.35:1).
About this color
#183B2B is a dark, muted green. In OKLCH its lightness is 32%, its chroma 0.050 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.030 away. White text reads best on it, at 12.35:1.
| Hue family | Greens |
| Lightness | dark (32%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.69:1 |
| White text | 12.35:1 |
Values
| HEX | #183B2B |
| RGB | rgb(24, 59, 43) |
| HSL | hsl(153, 42%, 16%) |
| OKLCH | oklch(32.1% 0.05 161.8) |
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 #183B2B | 12.35:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #183B2B | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #183B2B text on white | 12.35:1 | AAA | Lc 98.0 | Preferred for body text |
| #183B2B text on black | 1.69:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE6
oklch(93.6% 0.018 161.1)
-
Step 200
200
#C7E0D2
oklch(88.4% 0.033 161.2)
-
Step 300
300
#9FCDB5
oklch(80.9% 0.059 162)
-
Step 400
400
#66B38E
oklch(70.6% 0.095 161.8)
-
Step 500
500
#30A072
oklch(63.1% 0.122 161.6)
-
Step 600
600
#00895C
oklch(55.7% 0.123 161.5)
-
Step 700
700
#00734D
oklch(49.1% 0.108 161.8)
-
Step 800
800
#005E3F
oklch(42.6% 0.093 162.3)
-
Step 900
900
#074E34
oklch(37.6% 0.079 161.9)
-
Step 950
950 (this color)
#183B2B
oklch(32.1% 0.05 161.8)
#183B2B 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) | #3A372A | 0.048 |
| Deuteranopia (no green cones) | #35332C | 0.047 |
| Tritanopia (no blue cones) | #0C3B37 | 0.022 |
| Achromatopsia (no color) | #343434 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183B2B
#183B2B
oklch(32.1% 0.05 161.8)
- #45283A
#45283A
oklch(32% 0.051 342.6)
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 #183B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.030
- Evergreen #05472A ΔE 0.043
- Hunter Green #0B4008 ΔE 0.055
- Pine Green #0A481E ΔE 0.055
- Onyx #343A40 ΔE 0.057
- Midnight Green #073B4C ΔE 0.059
- Dark Olive #373E02 ΔE 0.061
- Gunmetal #293241 ΔE 0.062
Use #183B2B 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.