#3163B2
Closest named color: Mid Blue (#276AB3). oklch(50.7% 0.137 259.3), rgb(49, 99, 178).
Aa
White text reads best on this color (5.90:1).
About this color
#3163B2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.137 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.019 away. White text reads best on it, at 5.90:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #3163B2 |
| RGB | rgb(49, 99, 178) |
| HSL | hsl(217, 57%, 45%) |
| OKLCH | oklch(50.7% 0.137 259.3) |
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 #3163B2 | 5.90:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #3163B2 | 3.55:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #3163B2 text on white | 5.90:1 | AA | Lc 79.2 | Fine for body text |
| #3163B2 text on black | 3.55:1 | AA large text | Lc -22.6 | 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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A7C2EC
oklch(80.8% 0.067 259.1)
-
Step 400
400
#78A2E2
oklch(70.7% 0.105 258.6)
-
Step 500
500
#5589DA
oklch(63.1% 0.135 259)
-
Step 600
600
#3A71C8
oklch(55.6% 0.147 259.3)
-
Step 700
700 (this color)
#3163B2
oklch(50.7% 0.137 259.3)
-
Step 800
800
#264D8C
oklch(42.7% 0.114 259.6)
-
Step 900
900
#234170
oklch(37.7% 0.088 259.1)
-
Step 950
950
#152641
oklch(26.9% 0.056 259.3)
#3163B2 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) | #3C6BB5 | 0.026 |
| Deuteranopia (no green cones) | #235FB0 | 0.017 |
| Tritanopia (no blue cones) | #007582 | 0.107 |
| Achromatopsia (no color) | #646464 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3163B2
#3163B2
oklch(50.7% 0.137 259.3)
- #855D00
#855D00
oklch(50.8% 0.105 79.4)
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 #3163B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.019
- French Blue #436BAD ΔE 0.032
- Dusky Blue #475F94 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.053
- Muted Blue #3B719F ΔE 0.057
- Peacock Blue #016795 ΔE 0.057
- Windows Blue #3778BF ΔE 0.060
Use #3163B2 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.