#397569
Closest named color: Dark Aquamarine (#017371). oklch(51.8% 0.066 178.8), rgb(57, 117, 105).
Aa
White text reads best on this color (5.35:1).
About this color
#397569 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.066 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.031 away. White text reads best on it, at 5.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #397569 |
| RGB | rgb(57, 117, 105) |
| HSL | hsl(168, 34%, 34%) |
| OKLCH | oklch(51.8% 0.066 178.8) |
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 #397569 | 5.35:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #397569 | 3.92:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #397569 text on white | 5.35:1 | AA | Lc 76.5 | Fine for body text |
| #397569 text on black | 3.92:1 | 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
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ACC8C1
oklch(81% 0.032 178.7)
-
Step 400
400
#7EABA1
oklch(70.6% 0.051 179.5)
-
Step 500
500
#5C978A
oklch(63.2% 0.065 178.5)
-
Step 600
600
#3F8174
oklch(55.6% 0.071 179)
-
Step 700
700 (this color)
#397569
oklch(51.8% 0.066 178.8)
-
Step 800
800
#29594F
oklch(42.7% 0.055 178.1)
-
Step 900
900
#274942
oklch(37.7% 0.042 179.2)
-
Step 950
950
#172B27
oklch(27.1% 0.027 180)
#397569 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) | #716F69 | 0.070 |
| Deuteranopia (no green cones) | #67686A | 0.066 |
| Tritanopia (no blue cones) | #1D7771 | 0.020 |
| Achromatopsia (no color) | #6B6B6B | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397569
#397569
oklch(51.8% 0.066 178.8)
- #885868
#885868
oklch(51.8% 0.067 358.1)
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 #397569, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.031
- Bluegreen #017A79 ΔE 0.031
- Deep Turquoise #017374 ΔE 0.033
- Deep Aqua #08787F ΔE 0.037
- Teal #008080 ΔE 0.042
- Dark Aqua #05696B ΔE 0.053
- Slate #516572 ΔE 0.060
- Ocean #017B92 ΔE 0.063
Use #397569 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.