#397F6F
Closest named color: Teal (#008080). oklch(54.7% 0.075 176.2), rgb(57, 127, 111).
Aa
White text reads best on this color (4.73:1).
About this color
#397F6F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, 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 0.032 away. White text reads best on it, at 4.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #397F6F |
| RGB | rgb(57, 127, 111) |
| HSL | hsl(166, 38%, 36%) |
| OKLCH | oklch(54.7% 0.075 176.2) |
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 #397F6F | 4.73:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #397F6F | 4.43:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #397F6F text on white | 4.73:1 | AA | Lc 72.7 | Content text, not long reading |
| #397F6F text on black | 4.43:1 | AA large text | Lc -29.0 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ABC8C0
oklch(80.9% 0.033 177)
-
Step 400
400
#7CAC9F
oklch(70.6% 0.055 176)
-
Step 500
500
#599788
oklch(63% 0.069 176.7)
-
Step 600
600 (this color)
#397F6F
oklch(54.7% 0.075 176.2)
-
Step 700
700
#2D6E5F
oklch(49.2% 0.071 175.7)
-
Step 800
800
#27594E
oklch(42.6% 0.057 177)
-
Step 900
900
#254A41
oklch(37.8% 0.046 176.1)
-
Step 950
950
#162B26
oklch(27% 0.029 177.1)
#397F6F 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) | #7B786E | 0.079 |
| Deuteranopia (no green cones) | #707070 | 0.075 |
| Tritanopia (no blue cones) | #13817A | 0.023 |
| Achromatopsia (no color) | #737373 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F6F
#397F6F
oklch(54.7% 0.075 176.2)
- #945E72
#945E72
oklch(54.7% 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 #397F6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.032
- Bluegreen #017A79 ΔE 0.036
- Deep Aqua #08787F ΔE 0.045
- Dark Cyan #008B8B ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
- Dark Sage #598556 ΔE 0.054
- Dusty Teal #4C9085 ΔE 0.059
Use #397F6F 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.