#166375
Closest named color: Petrol (#005F6A). oklch(46.4% 0.076 217.7), rgb(22, 99, 117).
Aa
White text reads best on this color (6.82:1).
About this color
#166375 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.076 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.023 away. White text reads best on it, at 6.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #166375 |
| RGB | rgb(22, 99, 117) |
| HSL | hsl(191, 68%, 27%) |
| OKLCH | oklch(46.4% 0.076 217.7) |
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 #166375 | 6.82:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #166375 | 3.07:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #166375 text on white | 6.82:1 | AA | Lc 83.2 | Fine for body text |
| #166375 text on black | 3.07:1 | AA large text | Lc -18.7 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE2
oklch(88.6% 0.021 216.2)
-
Step 300
300
#A7C7D0
oklch(80.9% 0.037 216.6)
-
Step 400
400
#76AAB9
oklch(70.7% 0.059 217.7)
-
Step 500
500
#5095A8
oklch(63.2% 0.075 217.9)
-
Step 600
600
#307F93
oklch(55.7% 0.081 217.6)
-
Step 700
700 (this color)
#166375
oklch(46.4% 0.076 217.7)
-
Step 800
800
#1E5766
oklch(42.7% 0.063 218.5)
-
Step 900
900
#1F4853
oklch(37.7% 0.049 217.8)
-
Step 950
950
#132A30
oklch(26.9% 0.031 216.7)
#166375 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) | #576076 | 0.065 |
| Deuteranopia (no green cones) | #4B5775 | 0.058 |
| Tritanopia (no blue cones) | #006969 | 0.032 |
| Achromatopsia (no color) | #5B5B5B | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166375
#166375
oklch(46.4% 0.076 217.7)
- #7D4939
#7D4939
oklch(46.3% 0.076 37.9)
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 #166375, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.023
- Dark Aqua #05696B ΔE 0.029
- YInMn Blue #415A77 ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.050
- Denim #3B638C ΔE 0.051
- Peacock Blue #016795 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.051
Use #166375 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.