#397F75
Closest named color: Teal (#008080). oklch(54.9% 0.072 183), rgb(57, 127, 117).
Aa
White text reads best on this color (4.70:1).
About this color
#397F75 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.072 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.027 away. White text reads best on it, at 4.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #397F75 |
| RGB | rgb(57, 127, 117) |
| HSL | hsl(171, 38%, 36%) |
| OKLCH | oklch(54.9% 0.072 183) |
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 #397F75 | 4.70:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #397F75 | 4.46:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #397F75 text on white | 4.70:1 | AA | Lc 72.5 | Content text, not long reading |
| #397F75 text on black | 4.46:1 | AA large text | Lc -29.2 | 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 600.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#AAC8C2
oklch(80.9% 0.033 182)
-
Step 400
400
#7CACA3
oklch(70.8% 0.053 181.8)
-
Step 500
500
#59978D
oklch(63.1% 0.066 182.7)
-
Step 600
600 (this color)
#397F75
oklch(54.9% 0.072 183)
-
Step 700
700
#2D6D64
oklch(49% 0.067 182.9)
-
Step 800
800
#275952
oklch(42.7% 0.055 183.3)
-
Step 900
900
#254944
oklch(37.7% 0.043 184.1)
-
Step 950
950
#162B28
oklch(27% 0.028 184.2)
#397F75 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) | #7A7875 | 0.078 |
| Deuteranopia (no green cones) | #6E7076 | 0.073 |
| Tritanopia (no blue cones) | #0B817C | 0.022 |
| Achromatopsia (no color) | #747474 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F75
#397F75
oklch(54.9% 0.072 183)
- #955F6D
#955F6D
oklch(54.9% 0.073 2.9)
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 #397F75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.027
- Bluegreen #017A79 ΔE 0.033
- Deep Aqua #08787F ΔE 0.040
- Dark Cyan #008B8B ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.050
- Deep Turquoise #017374 ΔE 0.050
- Ocean #017B92 ΔE 0.055
- Dusty Teal #4C9085 ΔE 0.057
Use #397F75 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.