#0072B9
Closest named color: Mid Blue (#276AB3). oklch(53.6% 0.14 246.6), rgb(0, 114, 185).
Aa
White text reads best on this color (5.11:1).
About this color
#0072B9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.140 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.024 away. White text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #0072B9 |
| RGB | rgb(0, 114, 185) |
| HSL | hsl(203, 100%, 36%) |
| OKLCH | oklch(53.6% 0.14 246.6) |
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 #0072B9 | 5.11:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #0072B9 | 4.10:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #0072B9 text on white | 5.11:1 | AA | Lc 74.6 | Content text, not long reading |
| #0072B9 text on black | 4.10:1 | AA large text | Lc -27.1 | 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
#E1EBF6
oklch(93.6% 0.018 250.6)
-
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
#6AA6DC
oklch(70.6% 0.101 246.9)
-
Step 500
500
#3D8FD2
oklch(63% 0.128 246.5)
-
Step 600
600 (this color)
#0072B9
oklch(53.6% 0.14 246.6)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#075286
oklch(42.6% 0.108 246.9)
-
Step 900
900
#13456B
oklch(37.8% 0.083 245.9)
-
Step 950
950
#0D283F
oklch(26.9% 0.054 247.3)
#0072B9 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) | #4F76BC | 0.052 |
| Deuteranopia (no green cones) | #3467B8 | 0.034 |
| Tritanopia (no blue cones) | #00838C | 0.098 |
| Achromatopsia (no color) | #6E6E6E | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0072B9
#0072B9
oklch(53.6% 0.14 246.6)
- #9B5D00
#9B5D00
oklch(53.6% 0.119 66.2)
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 #0072B9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.024
- Nice Blue #107AB0 ΔE 0.030
- Windows Blue #3778BF ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.039
- French Blue #436BAD ΔE 0.040
- Ocean Blue #03719C ΔE 0.046
- Muted Blue #3B719F ΔE 0.047
- Sea Blue #047495 ΔE 0.060
Use #0072B9 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.