#3287B2
Closest named color: Blue NCS (#118AB2). oklch(59.2% 0.103 234.6), rgb(50, 135, 178).
Aa
Black text reads best on this color (5.24:1).
About this color
#3287B2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.103 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.015 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #3287B2 |
| RGB | rgb(50, 135, 178) |
| HSL | hsl(200, 56%, 45%) |
| OKLCH | oklch(59.2% 0.103 234.6) |
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 #3287B2 | 4.00:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #3287B2 | 5.24:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #3287B2 text on white | 4.00:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #3287B2 text on black | 5.24:1 | AA | Lc -34.6 | 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
#E2ECF2
oklch(93.7% 0.013 233.7)
-
Step 200
200
#C9DCE8
oklch(88.4% 0.026 235.4)
-
Step 300
300
#A4C6DB
oklch(80.9% 0.047 235.3)
-
Step 400
400
#71A9C8
oklch(70.8% 0.074 233.5)
-
Step 500
500
#4893BB
oklch(63.2% 0.096 234.4)
-
Step 600
600 (this color)
#3287B2
oklch(59.2% 0.103 234.6)
-
Step 700
700
#15698F
oklch(49.2% 0.096 234.2)
-
Step 800
800
#165574
oklch(42.6% 0.08 235.1)
-
Step 900
900
#1B475E
oklch(37.8% 0.062 234.6)
-
Step 950
950
#112937
oklch(26.9% 0.04 236.4)
#3287B2 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) | #7286B4 | 0.064 |
| Deuteranopia (no green cones) | #617AB1 | 0.053 |
| Tritanopia (no blue cones) | #009296 | 0.065 |
| Achromatopsia (no color) | #7F7F7F | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3287B2
#3287B2
oklch(59.2% 0.103 234.6)
- #AD6C3E
#AD6C3E
oklch(59.2% 0.103 54.5)
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 #3287B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.015
- Steel Blue #4682B4 ΔE 0.020
- Cool Blue #4984B8 ΔE 0.023
- Off Blue #5684AE ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.034
- Teal Blue #01889F ΔE 0.038
- Cerulean #457B9D ΔE 0.041
- Water Blue #0E87CC ΔE 0.042
Use #3287B2 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.