#397E6B
Closest named color: Teal (#008080). oklch(54.3% 0.077 172.8), rgb(57, 126, 107).
Aa
White text reads best on this color (4.80:1).
About this color
#397E6B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.077 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.036 away. White text reads best on it, at 4.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.37:1 |
| White text | 4.80:1 |
Values
| HEX | #397E6B |
| RGB | rgb(57, 126, 107) |
| HSL | hsl(163, 38%, 36%) |
| OKLCH | oklch(54.3% 0.077 172.8) |
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 #397E6B | 4.80:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #397E6B | 4.37:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #397E6B text on white | 4.80:1 | AA | Lc 73.2 | Content text, not long reading |
| #397E6B text on black | 4.37:1 | AA large text | Lc -28.5 | 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
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CDDDD8
oklch(88.4% 0.018 175.3)
-
Step 300
300
#ABC8BE
oklch(80.8% 0.034 172.6)
-
Step 400
400
#7DAC9D
oklch(70.6% 0.055 172.9)
-
Step 500
500
#5A9885
oklch(63.2% 0.071 172.3)
-
Step 600
600 (this color)
#397E6B
oklch(54.3% 0.077 172.8)
-
Step 700
700
#2F6E5D
oklch(49.2% 0.071 173)
-
Step 800
800
#285A4C
oklch(42.8% 0.059 172.7)
-
Step 900
900
#264A3F
oklch(37.8% 0.046 171.9)
-
Step 950
950
#172B25
oklch(27% 0.028 173)
#397E6B 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) | #7A776A | 0.079 |
| Deuteranopia (no green cones) | #706F6C | 0.076 |
| Tritanopia (no blue cones) | #187F78 | 0.025 |
| Achromatopsia (no color) | #727272 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397E6B
#397E6B
oklch(54.3% 0.077 172.8)
- #925D73
#925D73
oklch(54.3% 0.075 353.4)
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 #397E6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.036
- Bluegreen #017A79 ΔE 0.037
- Deep Aqua #08787F ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.050
- Deep Turquoise #017374 ΔE 0.052
- Dark Sage #598556 ΔE 0.052
- Dark Cyan #008B8B ΔE 0.052
- Sea Green #2E8B57 ΔE 0.058
Use #397E6B 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.