#006173
Closest named color: Petrol (#005F6A). oklch(45.4% 0.081 216.2), rgb(0, 97, 115).
Aa
White text reads best on this color (7.10:1).
About this color
#006173 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.081 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.015 away. White text reads best on it, at 7.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #006173 |
| RGB | rgb(0, 97, 115) |
| HSL | hsl(189, 100%, 23%) |
| OKLCH | oklch(45.4% 0.081 216.2) |
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 #006173 | 7.10:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #006173 | 2.95:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #006173 text on white | 7.10:1 | AAA | Lc 84.1 | Fine for body text |
| #006173 text on black | 2.95:1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#9FC9D4
oklch(80.9% 0.047 215.5)
-
Step 400
400
#66ADBF
oklch(70.8% 0.076 215.9)
-
Step 500
500
#3398AF
oklch(63.2% 0.096 216.2)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800 (this color)
#006173
oklch(45.4% 0.081 216.2)
-
Step 900
900
#0A4A57
oklch(37.8% 0.063 215.6)
-
Step 950
950
#0A2B33
oklch(26.9% 0.04 217)
#006173 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) | #555E74 | 0.070 |
| Deuteranopia (no green cones) | #475473 | 0.063 |
| Tritanopia (no blue cones) | #006767 | 0.032 |
| Achromatopsia (no color) | #585858 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006173
#006173
oklch(45.4% 0.081 216.2)
- #7D4536
#7D4536
oklch(45.5% 0.081 35.9)
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 #006173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.015
- Dark Aqua #05696B ΔE 0.033
- YInMn Blue #415A77 ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.049
- Deep Teal #00555A ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
- Peacock Blue #016795 ΔE 0.056
Use #006173 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.