#3285B4
Closest named color: Steel Blue (#4682B4). oklch(58.8% 0.107 237.6), rgb(50, 133, 180).
Aa
Black text reads best on this color (5.14:1).
About this color
#3285B4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.107 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.016 away. Black text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #3285B4 |
| RGB | rgb(50, 133, 180) |
| HSL | hsl(202, 57%, 45%) |
| OKLCH | oklch(58.8% 0.107 237.6) |
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 #3285B4 | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #3285B4 | 5.14:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #3285B4 text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #3285B4 text on black | 5.14:1 | AA | Lc -34.0 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A4C6DC
oklch(80.9% 0.048 236.6)
-
Step 400
400
#72A8CB
oklch(70.7% 0.077 237.7)
-
Step 500
500
#4992BE
oklch(63.1% 0.099 237.6)
-
Step 600
600 (this color)
#3285B4
oklch(58.8% 0.107 237.6)
-
Step 700
700
#176892
oklch(49.2% 0.099 237.5)
-
Step 800
800
#175576
oklch(42.7% 0.082 237)
-
Step 900
900
#1B465F
oklch(37.6% 0.064 237.4)
-
Step 950
950
#112938
oklch(26.9% 0.041 238.3)
#3285B4 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) | #6F85B6 | 0.061 |
| Deuteranopia (no green cones) | #5D78B3 | 0.050 |
| Tritanopia (no blue cones) | #009195 | 0.071 |
| Achromatopsia (no color) | #7E7E7E | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3285B4
#3285B4
oklch(58.8% 0.107 237.6)
- #AC6B37
#AC6B37
oklch(58.8% 0.107 57.2)
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 #3285B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.016
- Blue NCS #118AB2 ΔE 0.020
- Cool Blue #4984B8 ΔE 0.020
- Off Blue #5684AE ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.036
- Water Blue #0E87CC ΔE 0.037
- Nice Blue #107AB0 ΔE 0.038
- Cerulean #457B9D ΔE 0.040
Use #3285B4 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.