#397E6E
Closest named color: Teal (#008080). oklch(54.4% 0.075 176), rgb(57, 126, 110).
Aa
White text reads best on this color (4.79:1).
About this color
#397E6E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.075 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.033 away. White text reads best on it, at 4.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.38:1 |
| White text | 4.79:1 |
Values
| HEX | #397E6E |
| RGB | rgb(57, 126, 110) |
| HSL | hsl(166, 38%, 36%) |
| OKLCH | oklch(54.4% 0.075 176) |
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 #397E6E | 4.79:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #397E6E | 4.38:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #397E6E text on white | 4.79:1 | AA | Lc 73.1 | Content text, not long reading |
| #397E6E text on black | 4.38:1 | AA large text | Lc -28.6 | 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
#ABC8C0
oklch(80.9% 0.033 177)
-
Step 400
400
#7DAC9F
oklch(70.7% 0.054 175.7)
-
Step 500
500
#5A9788
oklch(63% 0.068 176.5)
-
Step 600
600 (this color)
#397E6E
oklch(54.4% 0.075 176)
-
Step 700
700
#2E6E5F
oklch(49.2% 0.07 175.5)
-
Step 800
800
#28594E
oklch(42.6% 0.057 176.8)
-
Step 900
900
#254941
oklch(37.6% 0.044 177.7)
-
Step 950
950
#172B26
oklch(27% 0.028 176.4)
#397E6E 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) | #7A776D | 0.079 |
| Deuteranopia (no green cones) | #6F6F6F | 0.075 |
| Tritanopia (no blue cones) | #157F79 | 0.023 |
| Achromatopsia (no color) | #727272 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397E6E
#397E6E
oklch(54.4% 0.075 176)
- #935D71
#935D71
oklch(54.4% 0.075 356.1)
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 #397E6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.033
- Bluegreen #017A79 ΔE 0.035
- Deep Aqua #08787F ΔE 0.044
- Dark Aquamarine #017371 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.049
- Deep Turquoise #017374 ΔE 0.050
- Dark Sage #598556 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.061
Use #397E6E 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.