#3367BA
Closest named color: Mid Blue (#276AB3). oklch(52.2% 0.142 259.4), rgb(51, 103, 186).
Aa
White text reads best on this color (5.54:1).
About this color
#3367BA is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.142 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.017 away. White text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #3367BA |
| RGB | rgb(51, 103, 186) |
| HSL | hsl(217, 57%, 46%) |
| OKLCH | oklch(52.2% 0.142 259.4) |
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 #3367BA | 5.54:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #3367BA | 3.78:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #3367BA text on white | 5.54:1 | AA | Lc 77.3 | Fine for body text |
| #3367BA text on black | 3.78:1 | AA large text | Lc -24.4 | 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
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A7C2EE
oklch(80.9% 0.069 260.1)
-
Step 400
400
#77A1E5
oklch(70.6% 0.11 259.7)
-
Step 500
500
#5388DD
oklch(63% 0.141 259.4)
-
Step 600
600
#3870CB
oklch(55.5% 0.153 259.7)
-
Step 700
700 (this color)
#3367BA
oklch(52.2% 0.142 259.4)
-
Step 800
800
#244D8E
oklch(42.7% 0.117 259.3)
-
Step 900
900
#224172
oklch(37.8% 0.092 259.2)
-
Step 950
950
#142643
oklch(27% 0.059 259.5)
#3367BA 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) | #3D6FBD | 0.025 |
| Deuteranopia (no green cones) | #2363B8 | 0.018 |
| Tritanopia (no blue cones) | #007A87 | 0.112 |
| Achromatopsia (no color) | #686868 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3367BA
#3367BA
oklch(52.2% 0.142 259.4)
- #8A6100
#8A6100
oklch(52.2% 0.108 79.7)
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 #3367BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.017
- French Blue #436BAD ΔE 0.030
- Windows Blue #3778BF ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.050
- Muted Blue #3B719F ΔE 0.057
- Nice Blue #107AB0 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.062
- Royal Blue #4169E1 ΔE 0.063
Use #3367BA 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.