#397688
Closest named color: Metallic Blue (#4F738E). oklch(53.3% 0.069 219.7), rgb(57, 118, 136).
Aa
White text reads best on this color (5.09:1).
About this color
#397688 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.069 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.027 away. White text reads best on it, at 5.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #397688 |
| RGB | rgb(57, 118, 136) |
| HSL | hsl(194, 41%, 38%) |
| OKLCH | oklch(53.3% 0.069 219.7) |
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 #397688 | 5.09:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #397688 | 4.12:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #397688 text on white | 5.09:1 | AA | Lc 75.0 | Content text, not long reading |
| #397688 text on black | 4.12:1 | AA large text | Lc -26.7 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#ACC6CE
oklch(81% 0.03 218.3)
-
Step 400
400
#7EA8B6
oklch(70.6% 0.05 220.4)
-
Step 500
500
#5C93A4
oklch(63.1% 0.063 219.5)
-
Step 600
600 (this color)
#397688
oklch(53.3% 0.069 219.7)
-
Step 700
700
#32697A
oklch(49.1% 0.064 220.7)
-
Step 800
800
#2A5663
oklch(42.7% 0.053 219.5)
-
Step 900
900
#274751
oklch(37.8% 0.041 220.1)
-
Step 950
950
#172A2F
oklch(27.1% 0.026 216.3)
#397688 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) | #6B7389 | 0.058 |
| Deuteranopia (no green cones) | #5F6A88 | 0.053 |
| Tritanopia (no blue cones) | #007C7C | 0.040 |
| Achromatopsia (no color) | #6E6E6E | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397688
#397688
oklch(53.3% 0.069 219.7)
- #8F5F4E
#8F5F4E
oklch(53.3% 0.068 40.3)
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 #397688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.027
- Ocean #017B92 ΔE 0.028
- Deep Aqua #08787F ΔE 0.032
- Sea Blue #047495 ΔE 0.034
- Cerulean #457B9D ΔE 0.037
- Dull Blue #49759C ΔE 0.038
- Bluegreen #017A79 ΔE 0.042
- Stormy Blue #507B9C ΔE 0.042
Use #397688 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.