#0C73C2
Closest named color: Windows Blue (#3778BF). oklch(54.5% 0.148 249.6), rgb(12, 115, 194).
Aa
White text reads best on this color (4.94:1).
About this color
#0C73C2 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.148 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.029 away. White text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #0C73C2 |
| RGB | rgb(12, 115, 194) |
| HSL | hsl(206, 88%, 40%) |
| OKLCH | oklch(54.5% 0.148 249.6) |
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 #0C73C2 | 4.94:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #0C73C2 | 4.24:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #0C73C2 text on white | 4.94:1 | AA | Lc 73.6 | Content text, not long reading |
| #0C73C2 text on black | 4.24:1 | AA large text | Lc -28.1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#A0C5EB
oklch(81% 0.067 249.3)
-
Step 400
400
#6AA5E1
oklch(70.6% 0.108 250)
-
Step 500
500
#3E8ED8
oklch(63.2% 0.136 249.4)
-
Step 600
600 (this color)
#0C73C2
oklch(54.5% 0.148 249.6)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#09518A
oklch(42.7% 0.114 249.5)
-
Step 900
900
#14446E
oklch(37.8% 0.088 249)
-
Step 950
950
#0E2841
oklch(27.1% 0.057 249.9)
#0C73C2 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) | #4B78C5 | 0.045 |
| Deuteranopia (no green cones) | #2D69C0 | 0.028 |
| Tritanopia (no blue cones) | #008691 | 0.107 |
| Achromatopsia (no color) | #707070 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C73C2
#0C73C2
oklch(54.5% 0.148 249.6)
- #9C6100
#9C6100
oklch(54.5% 0.119 68.9)
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 #0C73C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.029
- Mid Blue #276AB3 ΔE 0.031
- Nice Blue #107AB0 ΔE 0.038
- French Blue #436BAD ΔE 0.045
- Flat Blue #3C73A8 ΔE 0.047
- Water Blue #0E87CC ΔE 0.056
- Muted Blue #3B719F ΔE 0.058
- Ocean Blue #03719C ΔE 0.060
Use #0C73C2 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.