#0073BA
Closest named color: Mid Blue (#276AB3). oklch(53.9% 0.14 246.4), rgb(0, 115, 186).
Aa
White text reads best on this color (5.04:1).
About this color
#0073BA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.140 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.026 away. White text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #0073BA |
| RGB | rgb(0, 115, 186) |
| HSL | hsl(203, 100%, 36%) |
| OKLCH | oklch(53.9% 0.14 246.4) |
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 #0073BA | 5.04:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #0073BA | 4.16:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #0073BA text on white | 5.04:1 | AA | Lc 74.2 | Content text, not long reading |
| #0073BA text on black | 4.16:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCEF
oklch(88.5% 0.035 245.5)
-
Step 300
300
#A0C5E8
oklch(80.9% 0.064 247.2)
-
Step 400
400
#6AA7DC
oklch(70.8% 0.101 246)
-
Step 500
500
#3D8FD2
oklch(63% 0.128 246.5)
-
Step 600
600 (this color)
#0073BA
oklch(53.9% 0.14 246.4)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#065286
oklch(42.6% 0.108 246.8)
-
Step 900
900
#13456B
oklch(37.8% 0.083 245.9)
-
Step 950
950
#0D283F
oklch(26.9% 0.054 247.3)
#0073BA 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) | #5077BD | 0.052 |
| Deuteranopia (no green cones) | #3568B9 | 0.035 |
| Tritanopia (no blue cones) | #00848D | 0.098 |
| Achromatopsia (no color) | #6F6F6F | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0073BA
#0073BA
oklch(53.9% 0.14 246.4)
- #9C5E00
#9C5E00
oklch(53.9% 0.12 66.5)
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 #0073BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.026
- Nice Blue #107AB0 ΔE 0.029
- Windows Blue #3778BF ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.039
- French Blue #436BAD ΔE 0.041
- Ocean Blue #03719C ΔE 0.047
- Muted Blue #3B719F ΔE 0.048
- Water Blue #0E87CC ΔE 0.060
Use #0073BA 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.