#3283B3
Closest named color: Steel Blue (#4682B4). oklch(58.2% 0.107 238.7), rgb(50, 131, 179).
Aa
Black text reads best on this color (5.03:1).
About this color
#3283B3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.107 and its hue 239°. 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 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.03:1 |
| White text | 4.17:1 |
Values
| HEX | #3283B3 |
| RGB | rgb(50, 131, 179) |
| HSL | hsl(202, 56%, 45%) |
| OKLCH | oklch(58.2% 0.107 238.7) |
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 #3283B3 | 4.17:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #3283B3 | 5.03:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #3283B3 text on white | 4.17:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #3283B3 text on black | 5.03:1 | AA | Lc -33.2 | 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
#A5C6DD
oklch(81% 0.048 238.6)
-
Step 400
400
#73A8CC
oklch(70.8% 0.077 239)
-
Step 500
500
#4B91BE
oklch(63% 0.098 239.1)
-
Step 600
600 (this color)
#3283B3
oklch(58.2% 0.107 238.7)
-
Step 700
700
#1A6792
oklch(49% 0.099 238.9)
-
Step 800
800
#195577
oklch(42.8% 0.082 238.3)
-
Step 900
900
#1C4660
oklch(37.7% 0.064 238.9)
-
Step 950
950
#122938
oklch(27% 0.04 239.2)
#3283B3 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) | #6C83B5 | 0.058 |
| Deuteranopia (no green cones) | #5B77B2 | 0.047 |
| Tritanopia (no blue cones) | #008F94 | 0.071 |
| Achromatopsia (no color) | #7C7C7C | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3283B3
#3283B3
oklch(58.2% 0.107 238.7)
- #A96A34
#A96A34
oklch(58.2% 0.106 58.9)
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 #3283B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.016
- Cool Blue #4984B8 ΔE 0.021
- Blue NCS #118AB2 ΔE 0.023
- Off Blue #5684AE ΔE 0.032
- Nice Blue #107AB0 ΔE 0.033
- Cerulean #457B9D ΔE 0.037
- Water Blue #0E87CC ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.039
Use #3283B3 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.