#166F4D
Closest named color: Dark Green Blue (#1F6357). oklch(48.2% 0.098 162.1), rgb(22, 111, 77).
Aa
White text reads best on this color (6.14:1).
About this color
#166F4D is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.098 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.047 away. White text reads best on it, at 6.14:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #166F4D |
| RGB | rgb(22, 111, 77) |
| HSL | hsl(157, 67%, 26%) |
| OKLCH | oklch(48.2% 0.098 162.1) |
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 #166F4D | 6.14:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #166F4D | 3.41:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #166F4D text on white | 6.14:1 | AA | Lc 80.3 | Fine for body text |
| #166F4D text on black | 3.41:1 | AA large text | Lc -21.5 | 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 700.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#CBDFD4
oklch(88.6% 0.026 161.9)
-
Step 300
300
#A6CBB7
oklch(81% 0.048 161.5)
-
Step 400
400
#74B092
oklch(70.7% 0.077 161.9)
-
Step 500
500
#4C9C77
oklch(63.2% 0.098 161.7)
-
Step 600
600
#298660
oklch(55.6% 0.105 162)
-
Step 700
700 (this color)
#166F4D
oklch(48.2% 0.098 162.1)
-
Step 800
800
#195C41
oklch(42.5% 0.081 162.3)
-
Step 900
900
#1D4C37
oklch(37.7% 0.063 161.7)
-
Step 950
950
#122D20
oklch(27.1% 0.041 160.9)
#166F4D 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) | #6D664B | 0.094 |
| Deuteranopia (no green cones) | #625E4F | 0.091 |
| Tritanopia (no blue cones) | #006F66 | 0.039 |
| Achromatopsia (no color) | #616161 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166F4D
#166F4D
oklch(48.2% 0.098 162.1)
- #83466E
#83466E
oklch(48.2% 0.098 341.6)
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 #166F4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.054
- Spruce #0A5F38 ΔE 0.055
- Pine #2B5D34 ΔE 0.057
- Dark Aqua #05696B ΔE 0.057
- Deep Turquoise #017374 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.060
- Camo Green #526525 ΔE 0.063
Use #166F4D 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.