#3368DF
Closest named color: Royal Blue (#4169E1). oklch(55.1% 0.191 263.4), rgb(51, 104, 223).
Aa
White text reads best on this color (5.01:1).
About this color
#3368DF is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.191 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.014 away. White text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.191) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #3368DF |
| RGB | rgb(51, 104, 223) |
| HSL | hsl(222, 73%, 54%) |
| OKLCH | oklch(55.1% 0.191 263.4) |
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 #3368DF | 5.01:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #3368DF | 4.18:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #3368DF text on white | 5.01:1 | AA | Lc 74.1 | Content text, not long reading |
| #3368DF text on black | 4.18:1 | AA large text | Lc -27.6 | 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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAFA
oklch(88.6% 0.048 263.1)
-
Step 300
300
#A4C1F9
oklch(81% 0.086 263.3)
-
Step 400
400
#739EF6
oklch(70.6% 0.138 263.5)
-
Step 500
500
#4F83F2
oklch(63% 0.176 263.3)
-
Step 600
600 (this color)
#3368DF
oklch(55.1% 0.191 263.4)
-
Step 700
700
#2857C3
oklch(49.1% 0.177 263.5)
-
Step 800
800
#22489E
oklch(42.7% 0.147 263.5)
-
Step 900
900
#203D7D
oklch(37.6% 0.114 263.5)
-
Step 950
950
#132449
oklch(26.8% 0.072 263.7)
#3368DF 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) | #0077E3 | 0.039 |
| Deuteranopia (no green cones) | #0068DD | 0.023 |
| Tritanopia (no blue cones) | #008599 | 0.149 |
| Achromatopsia (no color) | #6F6F6F | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3368DF
#3368DF
oklch(55.1% 0.191 263.4)
- #916B00
#916B00
oklch(55.1% 0.113 83.9)
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 #3368DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.014
- Cerulean Blue #056EEE ΔE 0.030
- Neon Blue #4361EE ΔE 0.031
- Azul #1D5DEC ΔE 0.038
- Warm Blue #4B57DB ΔE 0.043
- Bright Blue #0165FC ΔE 0.049
- Clear Blue #247AFD ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.062
Use #3368DF 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.