#0D73A8
Closest named color: Ocean Blue (#03719C). oklch(53% 0.117 239.8), rgb(13, 115, 168).
Aa
White text reads best on this color (5.20:1).
About this color
#0D73A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.117 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.020 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #0D73A8 |
| RGB | rgb(13, 115, 168) |
| HSL | hsl(201, 86%, 35%) |
| OKLCH | oklch(53% 0.117 239.8) |
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 #0D73A8 | 5.20:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #0D73A8 | 4.03:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #0D73A8 text on white | 5.20:1 | AA | Lc 75.3 | Fine for body text |
| #0D73A8 text on black | 4.03:1 | AA large text | Lc -26.4 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C8DCEB
oklch(88.4% 0.03 240.2)
-
Step 300
300
#A2C6E0
oklch(80.9% 0.053 239.7)
-
Step 400
400
#6EA8D0
oklch(70.7% 0.084 239.7)
-
Step 500
500
#4392C4
oklch(63.2% 0.108 239.4)
-
Step 600
600 (this color)
#0D73A8
oklch(53% 0.117 239.8)
-
Step 700
700
#096798
oklch(49% 0.11 240.2)
-
Step 800
800
#10547B
oklch(42.6% 0.091 240.3)
-
Step 900
900
#174663
oklch(37.7% 0.071 239.8)
-
Step 950
950
#0F293A
oklch(26.9% 0.045 240)
#0D73A8 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) | #5974AA | 0.059 |
| Deuteranopia (no green cones) | #4567A7 | 0.046 |
| Tritanopia (no blue cones) | #008086 | 0.076 |
| Achromatopsia (no color) | #6D6D6D | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D73A8
#0D73A8
oklch(53% 0.117 239.8)
- #9C5912
#9C5912
oklch(53.1% 0.117 60.1)
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 #0D73A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.020
- Nice Blue #107AB0 ΔE 0.022
- Flat Blue #3C73A8 ΔE 0.027
- Muted Blue #3B719F ΔE 0.027
- Sea Blue #047495 ΔE 0.032
- Mid Blue #276AB3 ΔE 0.035
- French Blue #436BAD ΔE 0.040
- Peacock Blue #016795 ΔE 0.043
Use #0D73A8 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.