#173B01
Closest named color: Hunter Green (#0B4008). oklch(31.3% 0.093 136.7), rgb(23, 59, 1).
Aa
White text reads best on this color (12.63:1).
About this color
#173B01 is a dark, moderately saturated green. In OKLCH its lightness is 31%, its chroma 0.093 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hunter Green (#0B4008), ΔE 0.017 away. White text reads best on it, at 12.63:1.
| Hue family | Greens |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Hunter Green (#0B4008) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #173B01 |
| RGB | rgb(23, 59, 1) |
| HSL | hsl(97, 97%, 12%) |
| OKLCH | oklch(31.3% 0.093 136.7) |
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 #173B01 | 12.63:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #173B01 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #173B01 text on white | 12.63:1 | AAA | Lc 98.4 | Preferred for body text |
| #173B01 text on black | 1.66:1 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#E0EFDA
oklch(93.5% 0.032 136.6)
-
Step 200
200
#C7E3BB
oklch(88.5% 0.061 136.3)
-
Step 300
300
#9FD18A
oklch(80.8% 0.11 136.7)
-
Step 400
400
#67B83D
oklch(70.6% 0.177 136.8)
-
Step 500
500
#4AA200
oklch(63.2% 0.191 136.7)
-
Step 600
600
#3D8800
oklch(55.6% 0.168 136.7)
-
Step 700
700
#327200
oklch(49% 0.148 136.7)
-
Step 800
800
#285E00
oklch(42.8% 0.129 136.7)
-
Step 900
900
#204E00
oklch(37.6% 0.113 136.7)
-
Step 950
950 (this color)
#173B01
oklch(31.3% 0.093 136.7)
#173B01 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) | #3D3500 | 0.058 |
| Deuteranopia (no green cones) | #393207 | 0.058 |
| Tritanopia (no blue cones) | #153831 | 0.068 |
| Achromatopsia (no color) | #333333 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #173B01
#173B01
oklch(31.3% 0.093 136.7)
- #431F50
#431F50
oklch(31.3% 0.093 316.3)
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 #173B01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hunter Green #0B4008 ΔE 0.017
- Forrest Green #154406 ΔE 0.030
- Racing Green #014600 ΔE 0.038
- Pakistan Green #283618 ΔE 0.041
- British Racing Green #05480D ΔE 0.042
- Pine Green #0A481E ΔE 0.045
- Darkgreen #054907 ΔE 0.046
- Dark Olive #373E02 ΔE 0.046
Use #173B01 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.