#397C70
Closest named color: Bluegreen (#017A79). oklch(53.9% 0.071 180.2), rgb(57, 124, 112).
Aa
White text reads best on this color (4.89:1).
About this color
#397C70 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.071 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.030 away. White text reads best on it, at 4.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.29:1 |
| White text | 4.89:1 |
Values
| HEX | #397C70 |
| RGB | rgb(57, 124, 112) |
| HSL | hsl(169, 37%, 35%) |
| OKLCH | oklch(53.9% 0.071 180.2) |
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 #397C70 | 4.89:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #397C70 | 4.29:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #397C70 text on white | 4.89:1 | AA | Lc 73.7 | Content text, not long reading |
| #397C70 text on black | 4.29:1 | AA large text | Lc -28.0 | 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 600.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ABC8C1
oklch(80.9% 0.033 179.2)
-
Step 400
400
#7EABA2
oklch(70.6% 0.05 181.1)
-
Step 500
500
#5B978B
oklch(63.2% 0.066 179.9)
-
Step 600
600 (this color)
#397C70
oklch(53.9% 0.071 180.2)
-
Step 700
700
#306D62
oklch(49.1% 0.066 179.9)
-
Step 800
800
#295950
oklch(42.7% 0.055 179.7)
-
Step 900
900
#264942
oklch(37.7% 0.043 179.5)
-
Step 950
950
#172B27
oklch(27.1% 0.027 180)
#397C70 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) | #777570 | 0.075 |
| Deuteranopia (no green cones) | #6D6E71 | 0.071 |
| Tritanopia (no blue cones) | #147E78 | 0.021 |
| Achromatopsia (no color) | #717171 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397C70
#397C70
oklch(53.9% 0.071 180.2)
- #915D6C
#915D6C
oklch(54% 0.071 1)
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 #397C70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.030
- Teal #008080 ΔE 0.030
- Deep Aqua #08787F ΔE 0.038
- Dark Aquamarine #017371 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.044
- Dark Cyan #008B8B ΔE 0.051
- Ocean #017B92 ΔE 0.058
- Dark Sage #598556 ΔE 0.061
Use #397C70 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.