#397588
Closest named color: Metallic Blue (#4F738E). oklch(53% 0.069 221.2), rgb(57, 117, 136).
Aa
White text reads best on this color (5.15:1).
About this color
#397588 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.069 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.026 away. White text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #397588 |
| RGB | rgb(57, 117, 136) |
| HSL | hsl(194, 41%, 38%) |
| OKLCH | oklch(53% 0.069 221.2) |
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 #397588 | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #397588 | 4.07:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #397588 text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #397588 text on black | 4.07:1 | AA large text | Lc -26.4 | 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
#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
#ACC6CF
oklch(81% 0.031 220.7)
-
Step 400
400
#7FA8B7
oklch(70.7% 0.049 222.4)
-
Step 500
500
#5D93A5
oklch(63.2% 0.063 221.1)
-
Step 600
600 (this color)
#397588
oklch(53% 0.069 221.2)
-
Step 700
700
#32697A
oklch(49.1% 0.064 220.7)
-
Step 800
800
#2B5664
oklch(42.8% 0.053 221.5)
-
Step 900
900
#274751
oklch(37.8% 0.041 220.1)
-
Step 950
950
#18292F
oklch(26.9% 0.025 222.2)
#397588 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) | #6A7289 | 0.057 |
| Deuteranopia (no green cones) | #5E6A88 | 0.050 |
| Tritanopia (no blue cones) | #007B7B | 0.042 |
| Achromatopsia (no color) | #6D6D6D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397588
#397588
oklch(53% 0.069 221.2)
- #8E5E4D
#8E5E4D
oklch(52.9% 0.069 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 #397588, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.026
- Ocean #017B92 ΔE 0.029
- Deep Aqua #08787F ΔE 0.033
- Sea Blue #047495 ΔE 0.033
- Dull Blue #49759C ΔE 0.038
- Cerulean #457B9D ΔE 0.038
- Muted Blue #3B719F ΔE 0.042
- Bluegreen #017A79 ΔE 0.043
Use #397588 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.