#0368B3
Closest named color: Mid Blue (#276AB3). oklch(50.9% 0.142 249.9), rgb(3, 104, 179).
Aa
White text reads best on this color (5.77:1).
About this color
#0368B3 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.142 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.017 away. White text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #0368B3 |
| RGB | rgb(3, 104, 179) |
| HSL | hsl(206, 97%, 36%) |
| OKLCH | oklch(50.9% 0.142 249.9) |
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 #0368B3 | 5.77:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #0368B3 | 3.63:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #0368B3 text on white | 5.77:1 | AA | Lc 78.2 | Fine for body text |
| #0368B3 text on black | 3.63:1 | AA large text | Lc -23.5 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#9FC5EC
oklch(80.9% 0.069 249.4)
-
Step 400
400
#69A5E3
oklch(70.6% 0.111 250.4)
-
Step 500
500
#3B8DDB
oklch(63% 0.142 250.2)
-
Step 600
600
#0B76C8
oklch(55.6% 0.153 249.8)
-
Step 700
700 (this color)
#0368B3
oklch(50.9% 0.142 249.9)
-
Step 800
800
#04518C
oklch(42.7% 0.118 249.7)
-
Step 900
900
#124470
oklch(37.8% 0.091 249.5)
-
Step 950
950
#0D2842
oklch(27.1% 0.059 250.2)
#0368B3 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) | #416DB6 | 0.042 |
| Deuteranopia (no green cones) | #235FB2 | 0.025 |
| Tritanopia (no blue cones) | #007A85 | 0.102 |
| Achromatopsia (no color) | #666666 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0368B3
#0368B3
oklch(50.9% 0.142 249.9)
- #8D5800
#8D5800
oklch(50.8% 0.11 69.6)
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 #0368B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.017
- French Blue #436BAD ΔE 0.042
- Peacock Blue #016795 ΔE 0.048
- Ocean Blue #03719C ΔE 0.050
- Flat Blue #3C73A8 ΔE 0.052
- Nice Blue #107AB0 ΔE 0.054
- Muted Blue #3B719F ΔE 0.055
- Windows Blue #3778BF ΔE 0.058
Use #0368B3 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.