#173A18
Closest named color: Pakistan Green (#283618). oklch(31.3% 0.071 144.2), rgb(23, 58, 24).
Aa
White text reads best on this color (12.69:1).
About this color
#173A18 is a dark, moderately saturated green. In OKLCH its lightness is 31%, its chroma 0.071 and its hue 144°. 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 12.69:1.
| Hue family | Greens |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.65:1 |
| White text | 12.69:1 |
Values
| HEX | #173A18 |
| RGB | rgb(23, 58, 24) |
| HSL | hsl(122, 43%, 16%) |
| OKLCH | oklch(31.3% 0.071 144.2) |
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 #173A18 | 12.69:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #173A18 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #173A18 text on white | 12.69:1 | AAA | Lc 98.6 | Preferred for body text |
| #173A18 text on black | 1.65:1 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C7E2C6
oklch(88.5% 0.048 144.2)
-
Step 300
300
#A0CF9F
oklch(80.9% 0.083 144.2)
-
Step 400
400
#68B669
oklch(70.7% 0.134 144.3)
-
Step 500
500
#36A33D
oklch(63.2% 0.172 144.1)
-
Step 600
600
#008C1C
oklch(55.6% 0.179 144.1)
-
Step 700
700
#007616
oklch(49.1% 0.159 144.1)
-
Step 800
800
#006110
oklch(42.8% 0.138 144.1)
-
Step 900
900
#0D5013
oklch(37.8% 0.113 144)
-
Step 950
950 (this color)
#173A18
oklch(31.3% 0.071 144.2)
#173A18 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) | #3B3515 | 0.053 |
| Deuteranopia (no green cones) | #36311A | 0.053 |
| Tritanopia (no blue cones) | #123832 | 0.045 |
| Achromatopsia (no color) | #333333 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #173A18
#173A18
oklch(31.3% 0.071 144.2)
- #422345
#422345
oklch(31.2% 0.071 323.9)
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 #173A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.024
- Hunter Green #0B4008 ΔE 0.032
- Forrest Green #154406 ΔE 0.043
- Evergreen #05472A ΔE 0.044
- Pine Green #0A481E ΔE 0.046
- Dark Olive #373E02 ΔE 0.049
- Very Dark Green #062E03 ΔE 0.050
- British Racing Green #05480D ΔE 0.053
Use #173A18 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.