#397C7E
Closest named color: Teal (#008080). oklch(54.4% 0.068 198), rgb(57, 124, 126).
Aa
White text reads best on this color (4.81:1).
About this color
#397C7E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.068 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.025 away. White text reads best on it, at 4.81:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #397C7E |
| RGB | rgb(57, 124, 126) |
| HSL | hsl(182, 38%, 36%) |
| OKLCH | oklch(54.4% 0.068 198) |
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 #397C7E | 4.81:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #397C7E | 4.35:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #397C7E text on white | 4.81:1 | AA | Lc 73.2 | Content text, not long reading |
| #397C7E text on black | 4.35:1 | AA large text | Lc -28.4 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7DAAAB
oklch(70.6% 0.048 197.8)
-
Step 500
500
#5A9597
oklch(63% 0.062 198.5)
-
Step 600
600 (this color)
#397C7E
oklch(54.4% 0.068 198)
-
Step 700
700
#2E6C6E
oklch(49.2% 0.063 198.2)
-
Step 800
800
#285859
oklch(42.8% 0.052 197.2)
-
Step 900
900
#254849
oklch(37.6% 0.041 198)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#397C7E 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) | #74777E | 0.069 |
| Deuteranopia (no green cones) | #696E7E | 0.066 |
| Tritanopia (no blue cones) | #00807C | 0.027 |
| Achromatopsia (no color) | #727272 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397C7E
#397C7E
oklch(54.4% 0.068 198)
- #936061
#936061
oklch(54.4% 0.067 18.2)
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 #397C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.025
- Bluegreen #017A79 ΔE 0.030
- Deep Aqua #08787F ΔE 0.030
- Ocean #017B92 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.044
- Dark Cyan #008B8B ΔE 0.045
- Dark Aquamarine #017371 ΔE 0.046
- Metallic Blue #4F738E ΔE 0.048
Use #397C7E 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.