#397567
Closest named color: Dark Aquamarine (#017371). oklch(51.8% 0.067 176.3), rgb(57, 117, 103).
Aa
White text reads best on this color (5.36:1).
About this color
#397567 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.067 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.033 away. White text reads best on it, at 5.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #397567 |
| RGB | rgb(57, 117, 103) |
| HSL | hsl(166, 34%, 34%) |
| OKLCH | oklch(51.8% 0.067 176.3) |
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 #397567 | 5.36:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #397567 | 3.91:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #397567 text on white | 5.36:1 | AA | Lc 76.6 | Fine for body text |
| #397567 text on black | 3.91:1 | AA large text | Lc -25.2 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ACC8C0
oklch(81% 0.032 176.4)
-
Step 400
400
#7EAC9F
oklch(70.8% 0.053 175.4)
-
Step 500
500
#5C9788
oklch(63.1% 0.066 176.1)
-
Step 600
600
#408172
oklch(55.6% 0.071 176.6)
-
Step 700
700 (this color)
#397567
oklch(51.8% 0.067 176.3)
-
Step 800
800
#2A594E
oklch(42.7% 0.055 176.3)
-
Step 900
900
#274941
oklch(37.7% 0.042 177)
-
Step 950
950
#172B26
oklch(27% 0.028 176.4)
#397567 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) | #716F66 | 0.070 |
| Deuteranopia (no green cones) | #686868 | 0.067 |
| Tritanopia (no blue cones) | #1F7671 | 0.021 |
| Achromatopsia (no color) | #6B6B6B | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397567
#397567
oklch(51.8% 0.067 176.3)
- #885869
#885869
oklch(51.8% 0.067 356.9)
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 #397567, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.033
- Bluegreen #017A79 ΔE 0.033
- Deep Turquoise #017374 ΔE 0.035
- Deep Aqua #08787F ΔE 0.040
- Teal #008080 ΔE 0.044
- Dark Aqua #05696B ΔE 0.053
- Slate #516572 ΔE 0.062
- Dark Green Blue #1F6357 ΔE 0.064
Use #397567 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.