#396C8E
Closest named color: Denim (#3B638C). oklch(51.1% 0.077 239.8), rgb(57, 108, 142).
Aa
White text reads best on this color (5.66:1).
About this color
#396C8E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.077 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.026 away. White text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #396C8E |
| RGB | rgb(57, 108, 142) |
| HSL | hsl(204, 43%, 39%) |
| OKLCH | oklch(51.1% 0.077 239.8) |
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 #396C8E | 5.66:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #396C8E | 3.70:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #396C8E text on white | 5.66:1 | AA | Lc 78.2 | Fine for body text |
| #396C8E text on black | 3.70:1 | AA large text | Lc -23.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ACC4D7
oklch(80.8% 0.038 241.9)
-
Step 400
400
#7FA6C2
oklch(70.7% 0.059 239.9)
-
Step 500
500
#5D90B3
oklch(63.1% 0.076 239.6)
-
Step 600
600
#427A9F
oklch(55.7% 0.083 239.5)
-
Step 700
700 (this color)
#396C8E
oklch(51.1% 0.077 239.8)
-
Step 800
800
#2B546E
oklch(42.8% 0.063 238.5)
-
Step 900
900
#284559
oklch(37.7% 0.049 240)
-
Step 950
950
#182934
oklch(27.1% 0.031 237.8)
#396C8E 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) | #5D6C90 | 0.043 |
| Deuteranopia (no green cones) | #51638D | 0.035 |
| Tritanopia (no blue cones) | #007577 | 0.061 |
| Achromatopsia (no color) | #676767 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #396C8E
#396C8E
oklch(51.1% 0.077 239.8)
- #875B37
#875B37
oklch(51.1% 0.077 59.1)
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 #396C8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.026
- Muted Blue #3B719F ΔE 0.028
- Sea Blue #047495 ΔE 0.032
- Ocean Blue #03719C ΔE 0.032
- Metallic Blue #4F738E ΔE 0.034
- Dull Blue #49759C ΔE 0.038
- Peacock Blue #016795 ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.043
Use #396C8E 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.