#016571
Closest named color: Dark Aqua (#05696B). oklch(46.4% 0.08 209), rgb(1, 101, 113).
Aa
White text reads best on this color (6.77:1).
About this color
#016571 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.080 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.019 away. White text reads best on it, at 6.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.10:1 |
| White text | 6.77:1 |
Values
| HEX | #016571 |
| RGB | rgb(1, 101, 113) |
| HSL | hsl(186, 98%, 22%) |
| OKLCH | oklch(46.4% 0.08 209) |
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 #016571 | 6.77:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #016571 | 3.10:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #016571 text on white | 6.77:1 | AA | Lc 82.8 | Fine for body text |
| #016571 text on black | 3.10:1 | AA large text | Lc -19.1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A5C8CE
oklch(80.9% 0.038 209.1)
-
Step 400
400
#72ACB5
oklch(70.8% 0.062 208.1)
-
Step 500
500
#4897A3
oklch(63.2% 0.079 208.5)
-
Step 600
600
#23818E
oklch(55.6% 0.086 208.6)
-
Step 700
700 (this color)
#016571
oklch(46.4% 0.08 209)
-
Step 800
800
#155962
oklch(42.8% 0.066 208.1)
-
Step 900
900
#1A4950
oklch(37.7% 0.052 208.7)
-
Step 950
950
#112B2F
oklch(27% 0.033 208.6)
#016571 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) | #5A6172 | 0.075 |
| Deuteranopia (no green cones) | #4D5771 | 0.069 |
| Tritanopia (no blue cones) | #006A69 | 0.024 |
| Achromatopsia (no color) | #5B5B5B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #016571
#016571
oklch(46.4% 0.08 209)
- #80473F
#80473F
oklch(46.4% 0.08 28.9)
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 #016571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.019
- Petrol #005F6A ΔE 0.020
- Dark Green Blue #1F6357 ΔE 0.041
- Deep Turquoise #017374 ΔE 0.044
- Dark Aquamarine #017371 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.055
- Deep Teal #00555A ΔE 0.057
- Peacock Blue #016795 ΔE 0.059
Use #016571 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.