#397188
Closest named color: Metallic Blue (#4F738E). oklch(52% 0.069 227.2), rgb(57, 113, 136).
Aa
White text reads best on this color (5.39:1).
About this color
#397188 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.069 and its hue 227°. 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 5.39:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #397188 |
| RGB | rgb(57, 113, 136) |
| HSL | hsl(197, 41%, 38%) |
| OKLCH | oklch(52% 0.069 227.2) |
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 #397188 | 5.39:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #397188 | 3.89:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #397188 text on white | 5.39:1 | AA | Lc 76.7 | Fine for body text |
| #397188 text on black | 3.89:1 | AA large text | Lc -25.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#ABC5D2
oklch(80.8% 0.034 229.4)
-
Step 400
400
#7DA8BB
oklch(70.7% 0.054 227)
-
Step 500
500
#5B92AA
oklch(63.1% 0.068 227.6)
-
Step 600
600
#3F7C95
oklch(55.6% 0.074 227.1)
-
Step 700
700 (this color)
#397188
oklch(52% 0.069 227.2)
-
Step 800
800
#295567
oklch(42.6% 0.057 227.1)
-
Step 900
900
#264654
oklch(37.6% 0.045 228.1)
-
Step 950
950
#172931
oklch(26.9% 0.028 227.9)
#397188 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) | #656F89 | 0.052 |
| Deuteranopia (no green cones) | #596688 | 0.046 |
| Tritanopia (no blue cones) | #007878 | 0.048 |
| Achromatopsia (no color) | #6A6A6A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397188
#397188
oklch(52% 0.069 227.2)
- #8A5D46
#8A5D46
oklch(52.1% 0.069 47.8)
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 #397188, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.027
- Sea Blue #047495 ΔE 0.030
- Ocean #017B92 ΔE 0.035
- Muted Blue #3B719F ΔE 0.038
- Dull Blue #49759C ΔE 0.038
- Deep Aqua #08787F ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
- Cerulean #457B9D ΔE 0.043
Use #397188 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.