#183B23
Closest named color: Pakistan Green (#283618). oklch(31.9% 0.059 151.9), rgb(24, 59, 35).
Aa
White text reads best on this color (12.43:1).
About this color
#183B23 is a dark, muted green. In OKLCH its lightness is 32%, its chroma 0.059 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.024 away. White text reads best on it, at 12.43:1.
| Hue family | Greens |
| Lightness | dark (32%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.68:1 |
| White text | 12.43:1 |
Values
| HEX | #183B23 |
| RGB | rgb(24, 59, 35) |
| HSL | hsl(139, 42%, 16%) |
| OKLCH | oklch(31.9% 0.059 151.9) |
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 #183B23 | 12.43:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #183B23 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #183B23 text on white | 12.43:1 | AAA | Lc 98.1 | Preferred for body text |
| #183B23 text on black | 1.68:1 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C7E1CD
oklch(88.5% 0.039 152.4)
-
Step 300
300
#9FCEAA
oklch(80.8% 0.071 151.7)
-
Step 400
400
#67B57D
oklch(70.8% 0.113 151.7)
-
Step 500
500
#33A15C
oklch(63% 0.143 152)
-
Step 600
600
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007439
oklch(49% 0.129 152)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#0A4F27
oklch(37.7% 0.093 151.9)
-
Step 950
950 (this color)
#183B23
oklch(31.9% 0.059 151.9)
#183B23 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) | #3B3621 | 0.051 |
| Deuteranopia (no green cones) | #363324 | 0.049 |
| Tritanopia (no blue cones) | #103A35 | 0.032 |
| Achromatopsia (no color) | #343434 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183B23
#183B23
oklch(31.9% 0.059 151.9)
- #442740
#442740
oklch(32% 0.059 331.9)
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 #183B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.024
- Evergreen #05472A ΔE 0.039
- Hunter Green #0B4008 ΔE 0.043
- Pine Green #0A481E ΔE 0.048
- Forrest Green #154406 ΔE 0.051
- Dark Olive #373E02 ΔE 0.052
- British Racing Green #05480D ΔE 0.060
- Very Dark Green #062E03 ΔE 0.061
Use #183B23 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.