#166644
Closest named color: Spruce (#0A5F38). oklch(45.4% 0.094 160), rgb(22, 102, 68).
Aa
White text reads best on this color (6.95:1).
About this color
#166644 is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.094 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.027 away. White text reads best on it, at 6.95:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 3.01:1 |
| White text | 6.95:1 |
Values
| HEX | #166644 |
| RGB | rgb(22, 102, 68) |
| HSL | hsl(155, 65%, 24%) |
| OKLCH | oklch(45.4% 0.094 160) |
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 #166644 | 6.95:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #166644 | 3.01:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #166644 text on white | 6.95:1 | AA | Lc 83.7 | Fine for body text |
| #166644 text on black | 3.01:1 | AA large text | Lc -18.2 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE6
oklch(93.5% 0.016 160.6)
-
Step 200
200
#C9E0D2
oklch(88.6% 0.031 159)
-
Step 300
300
#A3CCB5
oklch(80.9% 0.054 160.3)
-
Step 400
400
#6EB28E
oklch(70.8% 0.088 159.9)
-
Step 500
500
#419E72
oklch(63.1% 0.111 160)
-
Step 600
600
#11885A
oklch(55.5% 0.121 160.1)
-
Step 700
700
#00734A
oklch(49% 0.111 160)
-
Step 800
800 (this color)
#166644
oklch(45.4% 0.094 160)
-
Step 900
900
#154D34
oklch(37.6% 0.072 160.2)
-
Step 950
950
#0F2D1E
oklch(26.9% 0.046 159.2)
#166644 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) | #655E42 | 0.088 |
| Deuteranopia (no green cones) | #5B5746 | 0.085 |
| Tritanopia (no blue cones) | #00665D | 0.039 |
| Achromatopsia (no color) | #595959 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166644
#166644
oklch(45.4% 0.094 160)
- #784067
#784067
oklch(45.4% 0.094 339.6)
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 #166644, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.027
- Pine #2B5D34 ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Aqua #05696B ΔE 0.060
- Army Green #4B5D16 ΔE 0.061
- Camouflage Green #4B6113 ΔE 0.061
- Camo Green #526525 ΔE 0.062
- Dark Olive Green #556B2F ΔE 0.067
Use #166644 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.