#166454
Closest named color: Dark Green Blue (#1F6357). oklch(45.3% 0.077 175.4), rgb(22, 100, 84).
Aa
White text reads best on this color (7.03:1).
About this color
#166454 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.077 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.009 away. White text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #166454 |
| RGB | rgb(22, 100, 84) |
| HSL | hsl(168, 64%, 24%) |
| OKLCH | oklch(45.3% 0.077 175.4) |
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 #166454 | 7.03:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #166454 | 2.98:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #166454 text on white | 7.03:1 | AAA | Lc 84.0 | Fine for body text |
| #166454 text on black | 2.98:1 | Fails | Lc -17.9 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C9DFD8
oklch(88.5% 0.025 174.7)
-
Step 300
300
#A3CBBF
oklch(81% 0.046 174.9)
-
Step 400
400
#6EB09E
oklch(70.8% 0.073 174.9)
-
Step 500
500
#419C87
oklch(63.2% 0.093 175.5)
-
Step 600
600
#128670
oklch(55.6% 0.101 175.2)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800 (this color)
#166454
oklch(45.3% 0.077 175.4)
-
Step 900
900
#154C40
oklch(37.7% 0.06 175.4)
-
Step 950
950
#0F2D25
oklch(27.1% 0.039 173.2)
#166454 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) | #605D53 | 0.081 |
| Deuteranopia (no green cones) | #565655 | 0.077 |
| Tritanopia (no blue cones) | #00655F | 0.017 |
| Achromatopsia (no color) | #595959 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166454
#166454
oklch(45.3% 0.077 175.4)
- #784358
#784358
oklch(45.3% 0.078 355.4)
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 #166454, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.009
- Dark Aqua #05696B ΔE 0.036
- Spruce #0A5F38 ΔE 0.044
- Petrol #005F6A ΔE 0.045
- Pine #2B5D34 ΔE 0.045
- Dark Aquamarine #017371 ΔE 0.055
- Deep Teal #00555A ΔE 0.056
- Deep Turquoise #017374 ΔE 0.058
Use #166454 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.