#01665A
Closest named color: Dark Green Blue (#1F6357). oklch(45.8% 0.082 181.1), rgb(1, 102, 90).
Aa
White text reads best on this color (6.88:1).
About this color
#01665A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.082 and its hue 181°. 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 6.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.04:1 |
| White text | 6.88:1 |
Values
| HEX | #01665A |
| RGB | rgb(1, 102, 90) |
| HSL | hsl(173, 98%, 20%) |
| OKLCH | oklch(45.8% 0.082 181.1) |
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 #01665A | 6.88:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #01665A | 3.04:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #01665A text on white | 6.88:1 | AA | Lc 83.3 | Fine for body text |
| #01665A text on black | 3.04:1 | 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 800.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C7DFDA
oklch(88.4% 0.026 181.8)
-
Step 300
300
#9FCBC2
oklch(80.8% 0.048 181.1)
-
Step 400
400
#67B1A3
oklch(70.8% 0.077 180.4)
-
Step 500
500
#339D8D
oklch(63.2% 0.098 181)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800 (this color)
#01665A
oklch(45.8% 0.082 181.1)
-
Step 900
900
#0A4C43
oklch(37.6% 0.064 181)
-
Step 950
950
#0A2D28
oklch(27.1% 0.041 182)
#01665A 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) | #615F5A | 0.088 |
| Deuteranopia (no green cones) | #55575B | 0.082 |
| Tritanopia (no blue cones) | #006862 | 0.013 |
| Achromatopsia (no color) | #5A5A5A | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01665A
#01665A
oklch(45.8% 0.082 181.1)
- #7C4355
#7C4355
oklch(45.8% 0.081 0.6)
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 #01665A, 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 0.027
- Petrol #005F6A ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.051
- Spruce #0A5F38 ΔE 0.051
- Pine #2B5D34 ΔE 0.055
- Deep Teal #00555A ΔE 0.057
Use #01665A 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.