#166355
Closest named color: Dark Green Blue (#1F6357). oklch(45.1% 0.076 177.5), rgb(22, 99, 85).
Aa
White text reads best on this color (7.11:1).
About this color
#166355 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.076 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.007 away. White text reads best on it, at 7.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #166355 |
| RGB | rgb(22, 99, 85) |
| HSL | hsl(169, 64%, 24%) |
| OKLCH | oklch(45.1% 0.076 177.5) |
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 #166355 | 7.11:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #166355 | 2.95:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #166355 text on white | 7.11:1 | AAA | Lc 84.4 | Fine for body text |
| #166355 text on black | 2.95:1 | Fails | Lc -17.6 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFD9
oklch(88.6% 0.025 177.6)
-
Step 300
300
#A3CAC0
oklch(80.8% 0.044 177.8)
-
Step 400
400
#6EAFA0
oklch(70.6% 0.071 177.9)
-
Step 500
500
#429B89
oklch(63% 0.09 177.8)
-
Step 600
600
#148673
oklch(55.7% 0.098 177.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800 (this color)
#166355
oklch(45.1% 0.076 177.5)
-
Step 900
900
#164C41
oklch(37.8% 0.059 176.8)
-
Step 950
950
#0F2C26
oklch(26.9% 0.037 177.8)
#166355 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) | #5F5C54 | 0.080 |
| Deuteranopia (no green cones) | #545556 | 0.075 |
| Tritanopia (no blue cones) | #00655F | 0.015 |
| Achromatopsia (no color) | #585858 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166355
#166355
oklch(45.1% 0.076 177.5)
- #774356
#774356
oklch(45.1% 0.076 357.2)
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 #166355, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.007
- Dark Aqua #05696B ΔE 0.035
- Petrol #005F6A ΔE 0.041
- Spruce #0A5F38 ΔE 0.045
- Pine #2B5D34 ΔE 0.046
- Deep Teal #00555A ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.057
- Dark Blue Green #005249 ΔE 0.058
Use #166355 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.