#3288AD
Closest named color: Blue NCS (#118AB2). oklch(59.2% 0.098 230.3), rgb(50, 136, 173).
Aa
Black text reads best on this color (5.26:1).
About this color
#3288AD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.098 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.014 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.26:1 |
| White text | 3.99:1 |
Values
| HEX | #3288AD |
| RGB | rgb(50, 136, 173) |
| HSL | hsl(198, 55%, 44%) |
| OKLCH | oklch(59.2% 0.098 230.3) |
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 #3288AD | 3.99:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #3288AD | 5.26:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #3288AD text on white | 3.99:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #3288AD text on black | 5.26:1 | AA | Lc -34.7 | Non-text elements, placeholder text |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A4C7D8
oklch(81% 0.044 228.9)
-
Step 400
400
#72A9C5
oklch(70.7% 0.071 231.2)
-
Step 500
500
#4893B6
oklch(63% 0.091 230.8)
-
Step 600
600 (this color)
#3288AD
oklch(59.2% 0.098 230.3)
-
Step 700
700
#156A8B
oklch(49.3% 0.092 230.2)
-
Step 800
800
#165670
oklch(42.6% 0.075 230)
-
Step 900
900
#1B475B
oklch(37.7% 0.059 230.9)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#3288AD 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) | #7586AF | 0.068 |
| Deuteranopia (no green cones) | #647AAC | 0.058 |
| Tritanopia (no blue cones) | #009294 | 0.059 |
| Achromatopsia (no color) | #7F7F7F | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3288AD
#3288AD
oklch(59.2% 0.098 230.3)
- #AC6B45
#AC6B45
oklch(59% 0.099 50.2)
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 #3288AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.014
- Steel Blue #4682B4 ΔE 0.027
- Cool Blue #4984B8 ΔE 0.029
- Teal Blue #01889F ΔE 0.030
- Off Blue #5684AE ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.034
- Cerulean #457B9D ΔE 0.039
- Stormy Blue #507B9C ΔE 0.043
Use #3288AD 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.