#172A18
Closest named color: Very Dark Green (#062E03). oklch(26.3% 0.041 145.5), rgb(23, 42, 24).
Aa
White text reads best on this color (15.20:1).
About this color
#172A18 is a dark, muted green. In OKLCH its lightness is 26%, its chroma 0.041 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Green (#062E03), ΔE 0.041 away. White text reads best on it, at 15.20:1.
| Hue family | Greens |
| Lightness | dark (26%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Very Dark Green (#062E03) |
| Black text | 1.38:1 |
| White text | 15.20:1 |
Values
| HEX | #172A18 |
| RGB | rgb(23, 42, 24) |
| HSL | hsl(123, 29%, 13%) |
| OKLCH | oklch(26.3% 0.041 145.5) |
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 #172A18 | 15.20:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #172A18 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #172A18 text on white | 15.20:1 | AAA | Lc 102.1 | Preferred for body text |
| #172A18 text on black | 1.38:1 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDECE
oklch(88.4% 0.028 145.3)
-
Step 300
300
#ADCAAE
oklch(81% 0.05 146)
-
Step 400
400
#81AE83
oklch(70.7% 0.079 145.8)
-
Step 500
500
#609A63
oklch(63.2% 0.102 145.4)
-
Step 600
600
#45844A
oklch(55.6% 0.11 145.6)
-
Step 700
700
#37703B
oklch(49.2% 0.102 145.2)
-
Step 800
800
#2E5B31
oklch(42.7% 0.084 145.3)
-
Step 900
900
#294B2B
oklch(37.7% 0.067 145.4)
-
Step 950
950 (this color)
#172A18
oklch(26.3% 0.041 145.5)
#172A18 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) | #2B2717 | 0.033 |
| Deuteranopia (no green cones) | #282519 | 0.032 |
| Tritanopia (no blue cones) | #152925 | 0.024 |
| Achromatopsia (no color) | #262626 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172A18
#172A18
oklch(26.3% 0.041 145.5)
- #2F1D30
#2F1D30
oklch(26.2% 0.043 324.9)
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 #172A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Green #062E03 ΔE 0.041
- Dark Forest Green #002D04 ΔE 0.042
- Jet #212529 ΔE 0.045
- Pakistan Green #283618 ΔE 0.052
- Dark #1B2431 ΔE 0.058
- Dark Brown #341C02 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.072
- Rich Black #0D1B2A ΔE 0.076
Use #172A18 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.