#397766
Closest named color: Bluegreen (#017A79). oklch(52.3% 0.07 173.3), rgb(57, 119, 102).
Aa
White text reads best on this color (5.24:1).
About this color
#397766 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.070 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.034 away. White text reads best on it, at 5.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #397766 |
| RGB | rgb(57, 119, 102) |
| HSL | hsl(164, 35%, 35%) |
| OKLCH | oklch(52.3% 0.07 173.3) |
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 #397766 | 5.24:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #397766 | 4.00:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #397766 text on white | 5.24:1 | AA | Lc 75.9 | Fine for body text |
| #397766 text on black | 4.00:1 | AA large text | Lc -25.9 | 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
#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
#5A9786
oklch(63% 0.069 174.2)
-
Step 600
600
#3E826F
oklch(55.6% 0.076 172.8)
-
Step 700
700 (this color)
#397766
oklch(52.3% 0.07 173.3)
-
Step 800
800
#28594C
oklch(42.6% 0.058 173.8)
-
Step 900
900
#264A3F
oklch(37.8% 0.046 171.9)
-
Step 950
950
#172B25
oklch(27% 0.028 173)
#397766 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) | #747065 | 0.074 |
| Deuteranopia (no green cones) | #6A6967 | 0.070 |
| Tritanopia (no blue cones) | #1F7872 | 0.023 |
| Achromatopsia (no color) | #6C6C6C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397766
#397766
oklch(52.3% 0.07 173.3)
- #8A596D
#8A596D
oklch(52.4% 0.07 353.7)
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 #397766, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.034
- Dark Aquamarine #017371 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.039
- Deep Aqua #08787F ΔE 0.042
- Teal #008080 ΔE 0.043
- Dark Aqua #05696B ΔE 0.059
- Dark Sage #598556 ΔE 0.066
- Dark Moss Green #606C38 ΔE 0.068
Use #397766 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.