#166D4A
Closest named color: Dark Green Blue (#1F6357). oklch(47.6% 0.098 160.9), rgb(22, 109, 74).
Aa
White text reads best on this color (6.32:1).
About this color
#166D4A is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.098 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.044 away. White text reads best on it, at 6.32:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.32:1 |
| White text | 6.32:1 |
Values
| HEX | #166D4A |
| RGB | rgb(22, 109, 74) |
| HSL | hsl(156, 66%, 26%) |
| OKLCH | oklch(47.6% 0.098 160.9) |
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 #166D4A | 6.32:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #166D4A | 3.32:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #166D4A text on white | 6.32:1 | AA | Lc 81.1 | Fine for body text |
| #166D4A text on black | 3.32:1 | AA large text | Lc -20.8 | 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
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A7CBB7
oklch(81% 0.048 160.8)
-
Step 400
400
#75B091
oklch(70.8% 0.077 160.7)
-
Step 500
500
#4E9C76
oklch(63.2% 0.097 160.6)
-
Step 600
600
#2C865F
oklch(55.6% 0.105 161)
-
Step 700
700 (this color)
#166D4A
oklch(47.6% 0.098 160.9)
-
Step 800
800
#1B5C40
oklch(42.6% 0.081 161.1)
-
Step 900
900
#1E4C36
oklch(37.7% 0.064 160.2)
-
Step 950
950
#132C20
oklch(26.9% 0.039 161.3)
#166D4A 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) | #6B6448 | 0.093 |
| Deuteranopia (no green cones) | #615D4C | 0.090 |
| Tritanopia (no blue cones) | #006D64 | 0.040 |
| Achromatopsia (no color) | #606060 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166D4A
#166D4A
oklch(47.6% 0.098 160.9)
- #81456D
#81456D
oklch(47.7% 0.098 341.1)
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 #166D4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.044
- Spruce #0A5F38 ΔE 0.048
- Pine #2B5D34 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.058
- Dark Aqua #05696B ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.060
- Camo Green #526525 ΔE 0.061
- Deep Turquoise #017374 ΔE 0.063
Use #166D4A 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.