#397173
Closest named color: Deep Turquoise (#017374). oklch(51.2% 0.059 198.5), rgb(57, 113, 115).
Aa
White text reads best on this color (5.55:1).
About this color
#397173 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.059 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.028 away. White text reads best on it, at 5.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.78:1 |
| White text | 5.55:1 |
Values
| HEX | #397173 |
| RGB | rgb(57, 113, 115) |
| HSL | hsl(182, 34%, 34%) |
| OKLCH | oklch(51.2% 0.059 198.5) |
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 #397173 | 5.55:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #397173 | 3.78:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #397173 text on white | 5.55:1 | AA | Lc 77.6 | Fine for body text |
| #397173 text on black | 3.78:1 | AA large text | Lc -24.2 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CEDDDD
oklch(88.6% 0.016 196.9)
-
Step 300
300
#ACC7C7
oklch(81% 0.029 196.6)
-
Step 400
400
#7FAAAB
oklch(70.7% 0.046 197.9)
-
Step 500
500
#5D9596
oklch(63.2% 0.059 197.2)
-
Step 600
600
#427F81
oklch(55.7% 0.063 198.3)
-
Step 700
700 (this color)
#397173
oklch(51.2% 0.059 198.5)
-
Step 800
800
#2B5759
oklch(42.6% 0.049 199.4)
-
Step 900
900
#284849
oklch(37.7% 0.038 198.2)
-
Step 950
950
#182A2B
oklch(27% 0.024 200.3)
#397173 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) | #6A6D73 | 0.060 |
| Deuteranopia (no green cones) | #606573 | 0.056 |
| Tritanopia (no blue cones) | #167471 | 0.024 |
| Achromatopsia (no color) | #686868 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397173
#397173
oklch(51.2% 0.059 198.5)
- #855959
#855959
oklch(51.2% 0.058 19.3)
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 #397173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.029
- Deep Aqua #08787F ΔE 0.030
- Bluegreen #017A79 ΔE 0.034
- Slate #516572 ΔE 0.043
- Dark Aqua #05696B ΔE 0.044
- Teal #008080 ΔE 0.046
- Ocean #017B92 ΔE 0.051
Use #397173 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.