#166757
Closest named color: Dark Green Blue (#1F6357). oklch(46.3% 0.079 176), rgb(22, 103, 87).
Aa
White text reads best on this color (6.74:1).
About this color
#166757 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.079 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.013 away. White text reads best on it, at 6.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #166757 |
| RGB | rgb(22, 103, 87) |
| HSL | hsl(168, 65%, 25%) |
| OKLCH | oklch(46.3% 0.079 176) |
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 #166757 | 6.74:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #166757 | 3.11:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #166757 text on white | 6.74:1 | AA | Lc 82.9 | Fine for body text |
| #166757 text on black | 3.11:1 | AA large text | Lc -19.0 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A8C9BF
oklch(80.9% 0.038 175)
-
Step 400
400
#77AE9F
oklch(70.8% 0.062 175.5)
-
Step 500
500
#519988
oklch(63.1% 0.078 176.5)
-
Step 600
600
#308471
oklch(55.7% 0.086 175.3)
-
Step 700
700 (this color)
#166757
oklch(46.3% 0.079 176)
-
Step 800
800
#1E5B4E
oklch(42.8% 0.066 176.3)
-
Step 900
900
#204A40
oklch(37.6% 0.05 175.7)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#166757 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) | #636056 | 0.083 |
| Deuteranopia (no green cones) | #585858 | 0.079 |
| Tritanopia (no blue cones) | #006862 | 0.017 |
| Achromatopsia (no color) | #5B5B5B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166757
#166757
oklch(46.3% 0.079 176)
- #7B455A
#7B455A
oklch(46.2% 0.079 355.8)
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 #166757, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.013
- Dark Aqua #05696B ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.047
- Petrol #005F6A ΔE 0.047
- Spruce #0A5F38 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.050
- Pine #2B5D34 ΔE 0.051
- Deep Teal #00555A ΔE 0.064
Use #166757 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.